56744015 has 4 divisors (see below), whose sum is σ = 68092824. Its totient is φ = 45395208.

The previous prime is 56743987. The next prime is 56744021. The reversal of 56744015 is 51044765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51044765 = 5 ⋅10208953.

It is a cyclic number.

It is not a de Polignac number, because 56744015 - 2⁸ = 56743759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5674397 + ... + 5674406.

It is an arithmetic number, because the mean of its divisors is an integer number (17023206).

Almost surely, 2^56744015 is an apocalyptic number.

56744015 is a deficient number, since it is larger than the sum of its proper divisors (11348809).

56744015 is a wasteful number, since it uses less digits than its factorization.

56744015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11348808.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 56744015 is about 7532.8623377837. The cubic root of 56744015 is about 384.2731324122.

The spelling of 56744015 in words is "fifty-six million, seven hundred forty-four thousand, fifteen".