56576477 has 4 divisors (see below), whose sum is σ = 58527420. Its totient is φ = 54625536.

The previous prime is 56576473. The next prime is 56576489. The reversal of 56576477 is 77467565.

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 27102436 + 29474041 = 5206^2 + 5429^2 .

It is a cyclic number.

It is not a de Polignac number, because 56576477 - 2² = 56576473 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 (56576473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975428 + ... + 975485.

It is an arithmetic number, because the mean of its divisors is an integer number (14631855).

Almost surely, 2^56576477 is an apocalyptic number.

It is an amenable number.

56576477 is a deficient number, since it is larger than the sum of its proper divisors (1950943).

56576477 is a wasteful number, since it uses less digits than its factorization.

56576477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950942.

The product of its digits is 1234800, while the sum is 47.

The square root of 56576477 is about 7521.7336432501. The cubic root of 56576477 is about 383.8945678612.

The spelling of 56576477 in words is "fifty-six million, five hundred seventy-six thousand, four hundred seventy-seven".