Search a number
-
+
25055126031 = 31317536111689
BaseRepresentation
bin10111010101011001…
…101110001000001111
32101200010122021111210
4113111121232020033
5402303103013111
615302110145503
71544614025445
oct272531561017
971603567453
1025055126031
11a697a69031
124a32ab2293
132493a97b80
1412d9816b95
159b99610a6
hex5d566e20f

25055126031 has 64 divisors (see below), whose sum is σ = 39451224960. Its totient is φ = 14003159040.

The previous prime is 25055125999. The next prime is 25055126051. The reversal of 25055126031 is 13062155052.

It is a happy number.

It is not a de Polignac number, because 25055126031 - 25 = 25055125999 is a prime.

It is a super-2 number, since 2×250551260312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25055126031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25055126051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2137635 + ... + 2149323.

It is an arithmetic number, because the mean of its divisors is an integer number (616425390).

Almost surely, 225055126031 is an apocalyptic number.

25055126031 is a deficient number, since it is larger than the sum of its proper divisors (14396098929).

25055126031 is a wasteful number, since it uses less digits than its factorization.

25055126031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 25055126031 in words is "twenty-five billion, fifty-five million, one hundred twenty-six thousand, thirty-one".

Divisors: 1 3 13 17 39 51 53 61 159 183 221 663 689 793 901 1037 2067 2379 2703 3111 3233 9699 11689 11713 13481 35067 35139 40443 42029 54961 126087 151957 164883 198713 455871 596139 619517 713029 714493 1858551 2139087 2143479 2583269 7749807 8053721 9269377 10531789 12121493 24161163 27808131 31595367 36364479 37790537 113371611 136913257 157579409 410739771 472738227 491276981 642439129 1473830943 1927317387 8351708677 25055126031