56370977 has 4 divisors (see below), whose sum is σ = 60707220. Its totient is φ = 52034736.

The previous prime is 56370961. The next prime is 56370991. The reversal of 56370977 is 77907365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77907365 = 5 ⋅15581473.

It can be written as a sum of positive squares in 2 ways, for example, as 14432401 + 41938576 = 3799^2 + 6476^2 .

It is not a de Polignac number, because 56370977 - 2⁴ = 56370961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56376977) 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, 2168102 + ... + 2168127.

It is an arithmetic number, because the mean of its divisors is an integer number (15176805).

Almost surely, 2^56370977 is an apocalyptic number.

It is an amenable number.

56370977 is a deficient number, since it is larger than the sum of its proper divisors (4336243).

56370977 is a wasteful number, since it uses less digits than its factorization.

56370977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336242.

The product of its (nonzero) digits is 277830, while the sum is 44.

The square root of 56370977 is about 7508.0608015652. The cubic root of 56370977 is about 383.4292034105.

The spelling of 56370977 in words is "fifty-six million, three hundred seventy thousand, nine hundred seventy-seven".