52640332 has 12 divisors (see below), whose sum is σ = 92793960. Its totient is φ = 26127776.

The previous prime is 52640327. The next prime is 52640363. The reversal of 52640332 is 23304625.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 52640297 and 52640306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47482 + ... + 48577.

It is an arithmetic number, because the mean of its divisors is an integer number (7732830).

Almost surely, 2^52640332 is an apocalyptic number.

It is an amenable number.

52640332 is a deficient number, since it is larger than the sum of its proper divisors (40153628).

52640332 is a wasteful number, since it uses less digits than its factorization.

52640332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96200 (or 96198 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 52640332 is about 7255.3657385414. The cubic root of 52640332 is about 374.7769506162.

Adding to 52640332 its reverse (23304625), we get a palindrome (75944957).

The spelling of 52640332 in words is "fifty-two million, six hundred forty thousand, three hundred thirty-two".