56380521 has 16 divisors (see below), whose sum is σ = 79332480. Its totient is φ = 35544960.

The previous prime is 56380501. The next prime is 56380529. The reversal of 56380521 is 12508365.

56380521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56380521 - 2¹⁴ = 56364137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56380529) 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 15 ways as a sum of consecutive naturals, for example, 1551 + ... + 10731.

It is an arithmetic number, because the mean of its divisors is an integer number (4958280).

Almost surely, 2^56380521 is an apocalyptic number.

It is an amenable number.

56380521 is a deficient number, since it is larger than the sum of its proper divisors (22951959).

56380521 is a wasteful number, since it uses less digits than its factorization.

56380521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9296.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 56380521 is about 7508.6963582236. The cubic root of 56380521 is about 383.4508412698.

Adding to 56380521 its reverse (12508365), we get a palindrome (68888886).

The spelling of 56380521 in words is "fifty-six million, three hundred eighty thousand, five hundred twenty-one".