56077613 has 4 divisors (see below), whose sum is σ = 56098080. Its totient is φ = 56057148.

The previous prime is 56077591. The next prime is 56077631. The reversal of 56077613 is 31677065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56077613 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 (56077643) 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, 5345 + ... + 11862.

It is an arithmetic number, because the mean of its divisors is an integer number (14024520).

Almost surely, 2^56077613 is an apocalyptic number.

It is an amenable number.

56077613 is a deficient number, since it is larger than the sum of its proper divisors (20467).

56077613 is a wasteful number, since it uses less digits than its factorization.

56077613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20466.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 56077613 is about 7488.4987146958. The cubic root of 56077613 is about 382.7629029723.

The spelling of 56077613 in words is "fifty-six million, seventy-seven thousand, six hundred thirteen".