25055505264 has 20 divisors (see below), whose sum is σ = 64726722056. Its totient is φ = 8351835072.

The previous prime is 25055505253. The next prime is 25055505271. The reversal of 25055505264 is 46250555052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260994799 + ... + 260994894.

Almost surely, 2^25055505264 is an apocalyptic number.

25055505264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25055505264 is an abundant number, since it is smaller than the sum of its proper divisors (39671216792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25055505264 is a wasteful number, since it uses less digits than its factorization.

25055505264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521989704 (or 521989698 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 25055505264 in words is "twenty-five billion, fifty-five million, five hundred five thousand, two hundred sixty-four".