56772577 has 4 divisors (see below), whose sum is σ = 58157316. Its totient is φ = 55387840.

The previous prime is 56772557. The next prime is 56772587. The reversal of 56772577 is 77527765.

56772577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29062881 + 27709696 = 5391^2 + 5264^2 .

It is a cyclic number.

It is not a de Polignac number, because 56772577 - 2⁷ = 56772449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56772557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692308 + ... + 692389.

It is an arithmetic number, because the mean of its divisors is an integer number (14539329).

Almost surely, 2^56772577 is an apocalyptic number.

It is an amenable number.

56772577 is a deficient number, since it is larger than the sum of its proper divisors (1384739).

56772577 is a wasteful number, since it uses less digits than its factorization.

56772577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384738.

The product of its digits is 720300, while the sum is 46.

The square root of 56772577 is about 7534.7579257731. The cubic root of 56772577 is about 384.3375959990.

The spelling of 56772577 in words is "fifty-six million, seven hundred seventy-two thousand, five hundred seventy-seven".