56577671 has 4 divisors (see below), whose sum is σ = 56661192. Its totient is φ = 56494152.

The previous prime is 56577629. The next prime is 56577673. The reversal of 56577671 is 17677565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17677565 = 5 ⋅3535513.

It is a cyclic number.

It is not a de Polignac number, because 56577671 - 2⁶ = 56577607 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 (56577673) 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, 40736 + ... + 42101.

It is an arithmetic number, because the mean of its divisors is an integer number (14165298).

Almost surely, 2^56577671 is an apocalyptic number.

56577671 is a deficient number, since it is larger than the sum of its proper divisors (83521).

56577671 is an equidigital number, since it uses as much as digits as its factorization.

56577671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83520.

The product of its digits is 308700, while the sum is 44.

The square root of 56577671 is about 7521.8130128314. The cubic root of 56577671 is about 383.8972684352.

The spelling of 56577671 in words is "fifty-six million, five hundred seventy-seven thousand, six hundred seventy-one".