25025055258 has 64 divisors (see below), whose sum is σ = 61101008640. Its totient is φ = 6669852672.

The previous prime is 25025055221. The next prime is 25025055277. The reversal of 25025055258 is 85255052052.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74403 + ... + 235766.

It is an arithmetic number, because the mean of its divisors is an integer number (954703260).

Almost surely, 2^25025055258 is an apocalyptic number.

25025055258 is an abundant number, since it is smaller than the sum of its proper divisors (36075953382).

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

25025055258 is a wasteful number, since it uses less digits than its factorization.

25025055258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310311.

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 25025055258 in words is "twenty-five billion, twenty-five million, fifty-five thousand, two hundred fifty-eight".