52640325 has 36 divisors (see below), whose sum is σ = 97339008. Its totient is φ = 27165600.

The previous prime is 52640309. The next prime is 52640327. The reversal of 52640325 is 52304625.

It is not a de Polignac number, because 52640325 - 2⁴ = 52640309 is a prime.

It is a super-2 number, since 2×52640325² = 5542007632211250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640327) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3202 + ... + 10748.

Almost surely, 2^52640325 is an apocalyptic number.

It is an amenable number.

52640325 is a deficient number, since it is larger than the sum of its proper divisors (44698683).

52640325 is a wasteful number, since it uses less digits than its factorization.

52640325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594 (or 7586 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 52640325 is about 7255.3652561398. The cubic root of 52640325 is about 374.7769340038.

The spelling of 52640325 in words is "fifty-two million, six hundred forty thousand, three hundred twenty-five".