56141977 has 4 divisors (see below), whose sum is σ = 56157220. Its totient is φ = 56126736.

The previous prime is 56141971. The next prime is 56141983. The reversal of 56141977 is 77914165.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (56141971) and next prime (56141983).

It can be written as a sum of positive squares in 2 ways, for example, as 27154521 + 28987456 = 5211^2 + 5384^2 .

It is a cyclic number.

It is not a de Polignac number, because 56141977 - 2⁷ = 56141849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56141971) 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, 1723 + ... + 10735.

It is an arithmetic number, because the mean of its divisors is an integer number (14039305).

Almost surely, 2^56141977 is an apocalyptic number.

It is an amenable number.

56141977 is a deficient number, since it is larger than the sum of its proper divisors (15243).

56141977 is an equidigital number, since it uses as much as digits as its factorization.

56141977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15242.

The product of its digits is 52920, while the sum is 40.

The square root of 56141977 is about 7492.7950058706. The cubic root of 56141977 is about 382.9092877811.

The spelling of 56141977 in words is "fifty-six million, one hundred forty-one thousand, nine hundred seventy-seven".