56151615 has 32 divisors (see below), whose sum is σ = 97445376. Its totient is φ = 27446400.

The previous prime is 56151577. The next prime is 56151617. The reversal of 56151615 is 51615165.

It is not a de Polignac number, because 56151615 - 2⁶ = 56151551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56151617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28492 + ... + 30398.

It is an arithmetic number, because the mean of its divisors is an integer number (3045168).

Almost surely, 2^56151615 is an apocalyptic number.

56151615 is a deficient number, since it is larger than the sum of its proper divisors (41293761).

56151615 is a wasteful number, since it uses less digits than its factorization.

56151615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its digits is 4500, while the sum is 30.

The square root of 56151615 is about 7493.4381294570. The cubic root of 56151615 is about 382.9311981160.

The spelling of 56151615 in words is "fifty-six million, one hundred fifty-one thousand, six hundred fifteen".