56913861 has 8 divisors (see below), whose sum is σ = 78333184. Its totient is φ = 36718560.

The previous prime is 56913839. The next prime is 56913869. The reversal of 56913861 is 16831965.

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

It is not a de Polignac number, because 56913861 - 2¹⁰ = 56912837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56913869) 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, 305896 + ... + 306081.

It is an arithmetic number, because the mean of its divisors is an integer number (9791648).

Almost surely, 2^56913861 is an apocalyptic number.

It is an amenable number.

56913861 is a deficient number, since it is larger than the sum of its proper divisors (21419323).

56913861 is a wasteful number, since it uses less digits than its factorization.

56913861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612011.

The product of its digits is 38880, while the sum is 39.

The square root of 56913861 is about 7544.1275837568. The cubic root of 56913861 is about 384.6561522089.

The spelling of 56913861 in words is "fifty-six million, nine hundred thirteen thousand, eight hundred sixty-one".