56115215 has 32 divisors (see below), whose sum is σ = 78636096. Its totient is φ = 38062080.

The previous prime is 56115197. The next prime is 56115217. The reversal of 56115215 is 51251165.

It is not a de Polignac number, because 56115215 - 2¹⁴ = 56098831 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 (56115217) 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, 46925 + ... + 48105.

It is an arithmetic number, because the mean of its divisors is an integer number (2457378).

Almost surely, 2^56115215 is an apocalyptic number.

56115215 is a deficient number, since it is larger than the sum of its proper divisors (22520881).

56115215 is a wasteful number, since it uses less digits than its factorization.

56115215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its digits is 1500, while the sum is 26.

The square root of 56115215 is about 7491.0089440609. The cubic root of 56115215 is about 382.8484358268.

The spelling of 56115215 in words is "fifty-six million, one hundred fifteen thousand, two hundred fifteen".