25505003052555 has 16 divisors (see below), whose sum is σ = 43947082183200. Its totient is φ = 12556309195008.

The previous prime is 25505003052533. The next prime is 25505003052593. The reversal of 25505003052555 is 55525030050552.

It is a happy number.

It is not a de Polignac number, because 25505003052555 - 2⁵ = 25505003052523 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65397443530 + ... + 65397443919.

It is an arithmetic number, because the mean of its divisors is an integer number (2746692636450).

Almost surely, 2^{25505003052555} is an apocalyptic number.

25505003052555 is a deficient number, since it is larger than the sum of its proper divisors (18442079130645).

25505003052555 is a wasteful number, since it uses less digits than its factorization.

25505003052555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130794887470.

The product of its (nonzero) digits is 937500, while the sum is 42.

The spelling of 25505003052555 in words is "twenty-five trillion, five hundred five billion, three million, fifty-two thousand, five hundred fifty-five".