52730390 has 16 divisors (see below), whose sum is σ = 95202432. Its totient is φ = 21028224.

The previous prime is 52730303. The next prime is 52730401. The reversal of 52730390 is 9303725.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4454 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (5950152).

Almost surely, 2^52730390 is an apocalyptic number.

52730390 is a deficient number, since it is larger than the sum of its proper divisors (42472042).

52730390 is a wasteful number, since it uses less digits than its factorization.

52730390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15991.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 52730390 is about 7261.5693896017. The cubic root of 52730390 is about 374.9905538361.

The spelling of 52730390 in words is "fifty-two million, seven hundred thirty thousand, three hundred ninety".