25301664325 has 24 divisors (see below), whose sum is σ = 35988450560. Its totient is φ = 17285659200.

The previous prime is 25301664263. The next prime is 25301664331. The reversal of 25301664325 is 52346610352.

It is not a de Polignac number, because 25301664325 - 2⁹ = 25301663813 is a prime.

It is a super-2 number, since 2×25301664325² (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 23 ways as a sum of consecutive naturals, for example, 219330 + ... + 314179.

Almost surely, 2^25301664325 is an apocalyptic number.

25301664325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25301664325 is a deficient number, since it is larger than the sum of its proper divisors (10686786235).

25301664325 is a wasteful number, since it uses less digits than its factorization.

25301664325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533797 (or 533792 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 25301664325 in words is "twenty-five billion, three hundred one million, six hundred sixty-four thousand, three hundred twenty-five".