25250943025 has 24 divisors (see below), whose sum is σ = 39037305024. Its totient is φ = 15740846400.

The previous prime is 25250942993. The next prime is 25250943041. The reversal of 25250943025 is 52034905252.

It is a happy number.

It is not a de Polignac number, because 25250943025 - 2⁵ = 25250942993 is a prime.

It is a super-2 number, since 2×25250943025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6556762 + ... + 6560611.

It is an arithmetic number, because the mean of its divisors is an integer number (1626554376).

Almost surely, 2^25250943025 is an apocalyptic number.

25250943025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25250943025 is a deficient number, since it is larger than the sum of its proper divisors (13786361999).

25250943025 is a wasteful number, since it uses less digits than its factorization.

25250943025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13117401 (or 13117396 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 25250943025 in words is "twenty-five billion, two hundred fifty million, nine hundred forty-three thousand, twenty-five".