56517573 has 16 divisors (see below), whose sum is σ = 86244480. Its totient is φ = 32249856.

The previous prime is 56517563. The next prime is 56517577. The reversal of 56517573 is 37571565.

It is a happy number.

It is not a de Polignac number, because 56517573 - 2¹⁰ = 56516549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56517577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18061 + ... + 20957.

It is an arithmetic number, because the mean of its divisors is an integer number (5390280).

Almost surely, 2^56517573 is an apocalyptic number.

It is an amenable number.

56517573 is a deficient number, since it is larger than the sum of its proper divisors (29726907).

56517573 is a wasteful number, since it uses less digits than its factorization.

56517573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its digits is 110250, while the sum is 39.

The square root of 56517573 is about 7517.8170368798. The cubic root of 56517573 is about 383.7612923428.

The spelling of 56517573 in words is "fifty-six million, five hundred seventeen thousand, five hundred seventy-three".