56752777 has 2 divisors, whose sum is σ = 56752778. Its totient is φ = 56752776.

The previous prime is 56752757. The next prime is 56752789. The reversal of 56752777 is 77725765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54331641 + 2421136 = 7371^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 56752777 - 2¹⁵ = 56720009 is a prime.

It is a super-3 number, since 3×56752777³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56752747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28376388 + 28376389.

It is an arithmetic number, because the mean of its divisors is an integer number (28376389).

Almost surely, 2^56752777 is an apocalyptic number.

It is an amenable number.

56752777 is a deficient number, since it is larger than the sum of its proper divisors (1).

56752777 is an equidigital number, since it uses as much as digits as its factorization.

56752777 is an evil number, because the sum of its binary digits is even.

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

The square root of 56752777 is about 7533.4439003685. The cubic root of 56752777 is about 384.2929102860.

The spelling of 56752777 in words is "fifty-six million, seven hundred fifty-two thousand, seven hundred seventy-seven".