56515043 has 4 divisors (see below), whose sum is σ = 60862368. Its totient is φ = 52167720.

The previous prime is 56515031. The next prime is 56515049. The reversal of 56515043 is 34051565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34051565 = 5 ⋅6810313.

It is a cyclic number.

It is not a de Polignac number, because 56515043 - 2⁴ = 56515027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56514997 and 56515015.

It is not an unprimeable number, because it can be changed into a prime (56515049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2173643 + ... + 2173668.

It is an arithmetic number, because the mean of its divisors is an integer number (15215592).

Almost surely, 2^56515043 is an apocalyptic number.

56515043 is a deficient number, since it is larger than the sum of its proper divisors (4347325).

56515043 is a wasteful number, since it uses less digits than its factorization.

56515043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347324.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 56515043 is about 7517.6487680657. The cubic root of 56515043 is about 383.7555659200.

The spelling of 56515043 in words is "fifty-six million, five hundred fifteen thousand, forty-three".