56755777 has 6 divisors (see below), whose sum is σ = 61457622. Its totient is φ = 52389792.

The previous prime is 56755763. The next prime is 56755799. The reversal of 56755777 is 77755765.

It can be written as a sum of positive squares in 3 ways, for example, as 3041536 + 53714241 = 1744^2 + 7329^2 .

It is not a de Polignac number, because 56755777 - 2²³ = 48367169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56755777.

It is not an unprimeable number, because it can be changed into a prime (56755747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167748 + ... + 168085.

It is an arithmetic number, because the mean of its divisors is an integer number (10242937).

Almost surely, 2^56755777 is an apocalyptic number.

It is an amenable number.

56755777 is a deficient number, since it is larger than the sum of its proper divisors (4701845).

56755777 is a wasteful number, since it uses less digits than its factorization.

56755777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335859 (or 335846 counting only the distinct ones).

The product of its digits is 1800750, while the sum is 49.

The square root of 56755777 is about 7533.6430098592. The cubic root of 56755777 is about 384.2996815165.

The spelling of 56755777 in words is "fifty-six million, seven hundred fifty-five thousand, seven hundred seventy-seven".