25550000250 has 32 divisors (see below), whose sum is σ = 63772802496. Its totient is φ = 6813333200.

The previous prime is 25550000173. The next prime is 25550000263. The reversal of 25550000250 is 5200005552.

It is a self number, because there is not a number n which added to its sum of digits gives 25550000250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17032584 + ... + 17034083.

It is an arithmetic number, because the mean of its divisors is an integer number (1992900078).

Almost surely, 2^25550000250 is an apocalyptic number.

25550000250 is an abundant number, since it is smaller than the sum of its proper divisors (38222802246).

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

25550000250 is a wasteful number, since it uses less digits than its factorization.

25550000250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34066687 (or 34066677 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The spelling of 25550000250 in words is "twenty-five billion, five hundred fifty million, two hundred fifty", and thus it is an aban number.