25250502530 has 64 divisors (see below), whose sum is σ = 50195808000. Its totient is φ = 9068958720.

The previous prime is 25250502517. The next prime is 25250502547. The reversal of 25250502530 is 3520505252.

It is a junction number, because it is equal to n+sod(n) for n = 25250502493 and 25250502502.

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, 4631246 + ... + 4636694.

It is an arithmetic number, because the mean of its divisors is an integer number (784309500).

Almost surely, 2^25250502530 is an apocalyptic number.

25250502530 is a deficient number, since it is larger than the sum of its proper divisors (24945305470).

25250502530 is a wasteful number, since it uses less digits than its factorization.

25250502530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979.

The product of its (nonzero) digits is 15000, while the sum is 29.

The spelling of 25250502530 in words is "twenty-five billion, two hundred fifty million, five hundred two thousand, five hundred thirty".