25560005131 has 8 divisors (see below), whose sum is σ = 25754122800. Its totient is φ = 25366033920.

The previous prime is 25560005101. The next prime is 25560005137. The reversal of 25560005131 is 13150006552.

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 25560005131 - 2⁵ = 25560005099 is a prime.

It is a super-2 number, since 2×25560005131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25560005131.

It is not an unprimeable number, because it can be changed into a prime (25560005137) 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, 327411 + ... + 397891.

It is an arithmetic number, because the mean of its divisors is an integer number (3219265350).

Almost surely, 2^25560005131 is an apocalyptic number.

25560005131 is a deficient number, since it is larger than the sum of its proper divisors (194117669).

25560005131 is a wasteful number, since it uses less digits than its factorization.

25560005131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73229.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 25560005131 in words is "twenty-five billion, five hundred sixty million, five thousand, one hundred thirty-one".