56077649 has 4 divisors (see below), whose sum is σ = 56291136. Its totient is φ = 55864164.

The previous prime is 56077643. The next prime is 56077661. The reversal of 56077649 is 94677065.

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 not a de Polignac number, because 56077649 - 2¹² = 56073553 is a prime.

It is a Duffinian 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, 106349 + ... + 106874.

It is an arithmetic number, because the mean of its divisors is an integer number (14072784).

Almost surely, 2^56077649 is an apocalyptic number.

It is an amenable number.

56077649 is a deficient number, since it is larger than the sum of its proper divisors (213487).

56077649 is a wasteful number, since it uses less digits than its factorization.

56077649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213486.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 56077649 is about 7488.5011183814. The cubic root of 56077649 is about 382.7629848793.

The spelling of 56077649 in words is "fifty-six million, seventy-seven thousand, six hundred forty-nine".