56277191 has 4 divisors (see below), whose sum is σ = 59587632. Its totient is φ = 52966752.

The previous prime is 56277181. The next prime is 56277223. The reversal of 56277191 is 19177265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56277191 - 2⁶ = 56277127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56277101) 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, 1655195 + ... + 1655228.

It is an arithmetic number, because the mean of its divisors is an integer number (14896908).

Almost surely, 2^56277191 is an apocalyptic number.

56277191 is a deficient number, since it is larger than the sum of its proper divisors (3310441).

56277191 is a wasteful number, since it uses less digits than its factorization.

56277191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310440.

The product of its digits is 26460, while the sum is 38.

The square root of 56277191 is about 7501.8125143195. The cubic root of 56277191 is about 383.2164446804.

The spelling of 56277191 in words is "fifty-six million, two hundred seventy-seven thousand, one hundred ninety-one".