25250287915 has 16 divisors (see below), whose sum is σ = 32050882368. Its totient is φ = 19057268736.

The previous prime is 25250287903. The next prime is 25250287949. The reversal of 25250287915 is 51978205252.

It is a cyclic number.

It is not a de Polignac number, because 25250287915 - 2⁵ = 25250287883 is a prime.

It is a Duffinian 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, 1495494 + ... + 1512283.

It is an arithmetic number, because the mean of its divisors is an integer number (2003180148).

Almost surely, 2^25250287915 is an apocalyptic number.

25250287915 is a deficient number, since it is larger than the sum of its proper divisors (6800594453).

25250287915 is a wasteful number, since it uses less digits than its factorization.

25250287915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007878.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 25250287915 in words is "twenty-five billion, two hundred fifty million, two hundred eighty-seven thousand, nine hundred fifteen".