56887123 has 2 divisors, whose sum is σ = 56887124. Its totient is φ = 56887122.

The previous prime is 56887097. The next prime is 56887141. The reversal of 56887123 is 32178865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56887123 - 2⁵ = 56887091 is a prime.

It is a super-2 number, since 2×56887123² = 6472289526434258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56887723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28443561 + 28443562.

It is an arithmetic number, because the mean of its divisors is an integer number (28443562).

Almost surely, 2^56887123 is an apocalyptic number.

56887123 is a deficient number, since it is larger than the sum of its proper divisors (1).

56887123 is an equidigital number, since it uses as much as digits as its factorization.

56887123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 56887123 is about 7542.3552687473. The cubic root of 56887123 is about 384.5959059171.

The spelling of 56887123 in words is "fifty-six million, eight hundred eighty-seven thousand, one hundred twenty-three".