56277557 has 8 divisors (see below), whose sum is σ = 64981056. Its totient is φ = 47740032.

The previous prime is 56277553. The next prime is 56277589. The reversal of 56277557 is 75577265.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56277557 - 2² = 56277553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56277553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40763 + ... + 42120.

It is an arithmetic number, because the mean of its divisors is an integer number (8122632).

Almost surely, 2^56277557 is an apocalyptic number.

It is an amenable number.

56277557 is a deficient number, since it is larger than the sum of its proper divisors (8703499).

56277557 is an equidigital number, since it uses as much as digits as its factorization.

56277557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82987.

The product of its digits is 514500, while the sum is 44.

The square root of 56277557 is about 7501.8369083845. The cubic root of 56277557 is about 383.2172754309.

The spelling of 56277557 in words is "fifty-six million, two hundred seventy-seven thousand, five hundred fifty-seven".