55960777 has 4 divisors (see below), whose sum is σ = 57325716. Its totient is φ = 54595840.

The previous prime is 55960769. The next prime is 55960781. The reversal of 55960777 is 77706955.

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 26050816 + 29909961 = 5104^2 + 5469^2 .

It is a cyclic number.

It is not a de Polignac number, because 55960777 - 2³ = 55960769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55960727) 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, 682408 + ... + 682489.

It is an arithmetic number, because the mean of its divisors is an integer number (14331429).

Almost surely, 2^55960777 is an apocalyptic number.

It is an amenable number.

55960777 is a deficient number, since it is larger than the sum of its proper divisors (1364939).

55960777 is a wasteful number, since it uses less digits than its factorization.

55960777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364938.

The product of its (nonzero) digits is 463050, while the sum is 46.

The square root of 55960777 is about 7480.6936175732. The cubic root of 55960777 is about 382.4968931925.

The spelling of 55960777 in words is "fifty-five million, nine hundred sixty thousand, seven hundred seventy-seven".