25250900190 has 32 divisors (see below), whose sum is σ = 64166994720. Its totient is φ = 6337480704.

The previous prime is 25250900167. The next prime is 25250900201. The reversal of 25250900190 is 9100905252.

It is a super-2 number, since 2×25250900190² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 24755275 + ... + 24756294.

It is an arithmetic number, because the mean of its divisors is an integer number (2005218585).

Almost surely, 2^25250900190 is an apocalyptic number.

25250900190 is an abundant number, since it is smaller than the sum of its proper divisors (38916094530).

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

25250900190 is a wasteful number, since it uses less digits than its factorization.

25250900190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49511596.

The product of its (nonzero) digits is 8100, while the sum is 33.

The spelling of 25250900190 in words is "twenty-five billion, two hundred fifty million, nine hundred thousand, one hundred ninety".