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25042250511 = 3267325912743
BaseRepresentation
bin10111010100101000…
…100110101100001111
32101122020102010121200
4113110220212230033
5402241304004021
615300530200543
71544366421465
oct272450465417
971566363550
1025042250511
11a690774503
124a2a723153
13249120a515
1412d7c24835
159b876b126
hex5d4a26b0f

25042250511 has 24 divisors (see below), whose sum is σ = 36726168960. Its totient is φ = 16439320656.

The previous prime is 25042250509. The next prime is 25042250551. The reversal of 25042250511 is 11505224052.

It is not a de Polignac number, because 25042250511 - 21 = 25042250509 is a prime.

It is a super-2 number, since 2×250422505112 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042250551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1958806 + ... + 1971548.

It is an arithmetic number, because the mean of its divisors is an integer number (1530257040).

Almost surely, 225042250511 is an apocalyptic number.

25042250511 is a deficient number, since it is larger than the sum of its proper divisors (11683918449).

25042250511 is a wasteful number, since it uses less digits than its factorization.

25042250511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16075 (or 16072 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 25042250511 its reverse (11505224052), we get a palindrome (36547474563).

The spelling of 25042250511 in words is "twenty-five billion, forty-two million, two hundred fifty thousand, five hundred eleven".

Divisors: 1 3 9 67 201 603 3259 9777 12743 29331 38229 114687 218353 655059 853781 1965177 2561343 7684029 41529437 124588311 373764933 2782472279 8347416837 25042250511