25250520504 has 64 divisors (see below), whose sum is σ = 69150977280. Its totient is φ = 7619904000.

The previous prime is 25250520469. The next prime is 25250520521. The reversal of 25250520504 is 40502505252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134812 + ... + 262059.

It is an arithmetic number, because the mean of its divisors is an integer number (1080484020).

Almost surely, 2^25250520504 is an apocalyptic number.

25250520504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25250520504 is an abundant number, since it is smaller than the sum of its proper divisors (43900456776).

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

25250520504 is a wasteful number, since it uses less digits than its factorization.

25250520504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397132 (or 397128 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The spelling of 25250520504 in words is "twenty-five billion, two hundred fifty million, five hundred twenty thousand, five hundred four".