52556730 has 16 divisors (see below), whose sum is σ = 126136224. Its totient is φ = 14015120.

The previous prime is 52556723. The next prime is 52556731. The reversal of 52556730 is 3765525.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52556691 and 52556700.

It is not an unprimeable number, because it can be changed into a prime (52556731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875916 + ... + 875975.

It is an arithmetic number, because the mean of its divisors is an integer number (7883514).

Almost surely, 2^52556730 is an apocalyptic number.

52556730 is an abundant number, since it is smaller than the sum of its proper divisors (73579494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52556730 is a wasteful number, since it uses less digits than its factorization.

52556730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751901.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 52556730 is about 7249.6020580443. The cubic root of 52556730 is about 374.5784418364.

The spelling of 52556730 in words is "fifty-two million, five hundred fifty-six thousand, seven hundred thirty".