Search a number
-
+
25231316252401 = 76317570598979
BaseRepresentation
bin1011011110010100111111…
…01001000111011011110001
310022100002102210220202210101
411233022133221013123301
511301342213430034101
6125355035012432401
75212621352340340
oct557123751073361
9108302383822711
1025231316252401
1180485a5277726
1229b5bb8918701
1311103c266791c
146332b8c81b57
152db4ceea6401
hex16f29fa476f1

25231316252401 has 8 divisors (see below), whose sum is σ = 28840354845120. Its totient is φ = 21623418870288.

The previous prime is 25231316252393. The next prime is 25231316252473. The reversal of 25231316252401 is 10425261313252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25231316252401 - 23 = 25231316252393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25231316252801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285255271 + ... + 285343708.

It is an arithmetic number, because the mean of its divisors is an integer number (3605044355640).

Almost surely, 225231316252401 is an apocalyptic number.

It is an amenable number.

25231316252401 is a deficient number, since it is larger than the sum of its proper divisors (3609038592719).

25231316252401 is an equidigital number, since it uses as much as digits as its factorization.

25231316252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570605303.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 25231316252401 its reverse (10425261313252), we get a palindrome (35656577565653).

The spelling of 25231316252401 in words is "twenty-five trillion, two hundred thirty-one billion, three hundred sixteen million, two hundred fifty-two thousand, four hundred one".

Divisors: 1 7 6317 44219 570598979 3994192853 3604473750343 25231316252401