56630521 has 8 divisors (see below), whose sum is σ = 58552064. Its totient is φ = 54714960.

The previous prime is 56630503. The next prime is 56630543. The reversal of 56630521 is 12503665.

56630521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56630521 - 2¹³ = 56622329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56630521.

It is not an unprimeable number, because it can be changed into a prime (56630551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26146 + ... + 28228.

It is an arithmetic number, because the mean of its divisors is an integer number (7319008).

Almost surely, 2^56630521 is an apocalyptic number.

It is an amenable number.

56630521 is a deficient number, since it is larger than the sum of its proper divisors (1921543).

56630521 is a wasteful number, since it uses less digits than its factorization.

56630521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56630521 is about 7525.3253085830. The cubic root of 56630521 is about 384.0167658515.

The spelling of 56630521 in words is "fifty-six million, six hundred thirty thousand, five hundred twenty-one".