25965008051 has 8 divisors (see below), whose sum is σ = 26146730400. Its totient is φ = 25783385472.

The previous prime is 25965008033. The next prime is 25965008057. The reversal of 25965008051 is 15080056952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25965008051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25965008057) 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, 542186 + ... + 588128.

It is an arithmetic number, because the mean of its divisors is an integer number (3268341300).

Almost surely, 2^25965008051 is an apocalyptic number.

25965008051 is a deficient number, since it is larger than the sum of its proper divisors (181722349).

25965008051 is a wasteful number, since it uses less digits than its factorization.

25965008051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49885.

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 25965008051 in words is "twenty-five billion, nine hundred sixty-five million, eight thousand, fifty-one".