56387901 has 16 divisors (see below), whose sum is σ = 76659264. Its totient is φ = 36860544.

The previous prime is 56387899. The next prime is 56387911. The reversal of 56387901 is 10978365.

It is not a de Polignac number, because 56387901 - 2¹ = 56387899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56387901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56387911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42490 + ... + 43796.

It is an arithmetic number, because the mean of its divisors is an integer number (4791204).

Almost surely, 2^56387901 is an apocalyptic number.

It is an amenable number.

56387901 is a deficient number, since it is larger than the sum of its proper divisors (20271363).

56387901 is a wasteful number, since it uses less digits than its factorization.

56387901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 56387901 is about 7509.1877723226. The cubic root of 56387901 is about 383.4675713017.

The spelling of 56387901 in words is "fifty-six million, three hundred eighty-seven thousand, nine hundred one".