56994539 has 4 divisors (see below), whose sum is σ = 65136624. Its totient is φ = 48852456.

The previous prime is 56994527. The next prime is 56994577. The reversal of 56994539 is 93549965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93549965 = 5 ⋅18709993.

It is a cyclic number.

It is not a de Polignac number, because 56994539 - 2¹⁶ = 56929003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56994589) 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, 4071032 + ... + 4071045.

It is an arithmetic number, because the mean of its divisors is an integer number (16284156).

Almost surely, 2^56994539 is an apocalyptic number.

56994539 is a deficient number, since it is larger than the sum of its proper divisors (8142085).

56994539 is an equidigital number, since it uses as much as digits as its factorization.

56994539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8142084.

The product of its digits is 1312200, while the sum is 50.

The square root of 56994539 is about 7549.4727630478. The cubic root of 56994539 is about 384.8378222880.

The spelling of 56994539 in words is "fifty-six million, nine hundred ninety-four thousand, five hundred thirty-nine".