25496884562 has 6 divisors (see below), whose sum is σ = 38245665573. Its totient is φ = 12748329372.

The previous prime is 25496884549. The next prime is 25496884579. The reversal of 25496884562 is 26548869452.

It can be written as a sum of positive squares in 2 ways, for example, as 22801302001 + 2695582561 = 151001^2 + 51919^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112909.

It is a super-2 number, since 2×25496884562² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 169364 + ... + 282272.

Almost surely, 2^25496884562 is an apocalyptic number.

25496884562 is a deficient number, since it is larger than the sum of its proper divisors (12748781011).

25496884562 is an frugal number, since it uses more digits than its factorization.

25496884562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225820 (or 112911 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 59.

The spelling of 25496884562 in words is "twenty-five billion, four hundred ninety-six million, eight hundred eighty-four thousand, five hundred sixty-two".