52640356 has 12 divisors (see below), whose sum is σ = 95092480. Its totient is φ = 25471080.

The previous prime is 52640327. The next prime is 52640363. The reversal of 52640356 is 65304625.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 212136 + ... + 212383.

Almost surely, 2^52640356 is an apocalyptic number.

It is an amenable number.

52640356 is a deficient number, since it is larger than the sum of its proper divisors (42452124).

52640356 is a wasteful number, since it uses less digits than its factorization.

52640356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424554 (or 424552 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 52640356 is about 7255.3673924895. The cubic root of 52640356 is about 374.7770075728. Note that the first 3 decimals are identical.

The spelling of 52640356 in words is "fifty-two million, six hundred forty thousand, three hundred fifty-six".