25055505260 has 24 divisors (see below), whose sum is σ = 54430926480. Its totient is φ = 9676608704.

The previous prime is 25055505253. The next prime is 25055505271. The reversal of 25055505260 is 6250555052.

It is a self number, because there is not a number n which added to its sum of digits gives 25055505260.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21598994 + ... + 21600153.

It is an arithmetic number, because the mean of its divisors is an integer number (2267955270).

Almost surely, 2^25055505260 is an apocalyptic number.

25055505260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25055505260 is an abundant number, since it is smaller than the sum of its proper divisors (29375421220).

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

25055505260 is a wasteful number, since it uses less digits than its factorization.

25055505260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43199185 (or 43199183 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 25055505260 in words is "twenty-five billion, fifty-five million, five hundred five thousand, two hundred sixty".