56906915 has 8 divisors (see below), whose sum is σ = 73541328. Its totient is φ = 42023520.

The previous prime is 56906909. The next prime is 56906921. The reversal of 56906915 is 51960965.

It is an interprime number because it is at equal distance from previous prime (56906909) and next prime (56906921).

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

It is not a de Polignac number, because 56906915 - 2⁸ = 56906659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437681 + ... + 437810.

It is an arithmetic number, because the mean of its divisors is an integer number (9192666).

Almost surely, 2^56906915 is an apocalyptic number.

56906915 is a deficient number, since it is larger than the sum of its proper divisors (16634413).

56906915 is a wasteful number, since it uses less digits than its factorization.

56906915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875509.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 56906915 is about 7543.6672116418. The cubic root of 56906915 is about 384.6405032364.

The spelling of 56906915 in words is "fifty-six million, nine hundred six thousand, nine hundred fifteen".