25630453925 has 12 divisors (see below), whose sum is σ = 31894074720. Its totient is φ = 20431903920.

The previous prime is 25630453913. The next prime is 25630453931. The reversal of 25630453925 is 52935403652.

It is not a de Polignac number, because 25630453925 - 2¹⁶ = 25630388389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1804265 + ... + 1818414.

It is an arithmetic number, because the mean of its divisors is an integer number (2657839560).

Almost surely, 2^25630453925 is an apocalyptic number.

25630453925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25630453925 is a deficient number, since it is larger than the sum of its proper divisors (6263620795).

25630453925 is a wasteful number, since it uses less digits than its factorization.

25630453925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622972 (or 3622967 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 25630453925 in words is "twenty-five billion, six hundred thirty million, four hundred fifty-three thousand, nine hundred twenty-five".