25532605564 has 6 divisors (see below), whose sum is σ = 44682059744. Its totient is φ = 12766302780.

The previous prime is 25532605531. The next prime is 25532605583. The reversal of 25532605564 is 46550623552.

It is a self number, because there is not a number n which added to its sum of digits gives 25532605564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3191575692 + ... + 3191575699.

Almost surely, 2^25532605564 is an apocalyptic number.

It is an amenable number.

25532605564 is a deficient number, since it is larger than the sum of its proper divisors (19149454180).

25532605564 is a wasteful number, since it uses less digits than its factorization.

25532605564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383151395 (or 6383151393 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 25532605564 in words is "twenty-five billion, five hundred thirty-two million, six hundred five thousand, five hundred sixty-four".