56777271 has 16 divisors (see below), whose sum is σ = 79171584. Its totient is φ = 36124704.

The previous prime is 56777239. The next prime is 56777291. The reversal of 56777271 is 17277765.

It is a happy number.

It is not a de Polignac number, because 56777271 - 2⁵ = 56777239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56777291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51690 + ... + 52776.

It is an arithmetic number, because the mean of its divisors is an integer number (4948224).

Almost surely, 2^56777271 is an apocalyptic number.

56777271 is a deficient number, since it is larger than the sum of its proper divisors (22394313).

56777271 is a wasteful number, since it uses less digits than its factorization.

56777271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its digits is 144060, while the sum is 42.

The square root of 56777271 is about 7535.0694091030. The cubic root of 56777271 is about 384.3481881490.

The spelling of 56777271 in words is "fifty-six million, seven hundred seventy-seven thousand, two hundred seventy-one".