25507713500 has 24 divisors (see below), whose sum is σ = 55708847376. Its totient is φ = 10203085200.

The previous prime is 25507713487. The next prime is 25507713533. The reversal of 25507713500 is 531770552.

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 7 ways as a sum of consecutive naturals, for example, 25507214 + ... + 25508213.

It is an arithmetic number, because the mean of its divisors is an integer number (2321201974).

Almost surely, 2^25507713500 is an apocalyptic number.

25507713500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25507713500 is an abundant number, since it is smaller than the sum of its proper divisors (30201133876).

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

25507713500 is a wasteful number, since it uses less digits than its factorization.

25507713500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51015446 (or 51015434 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 35.

The spelling of 25507713500 in words is "twenty-five billion, five hundred seven million, seven hundred thirteen thousand, five hundred".