56179487 has 20 divisors (see below), whose sum is σ = 69802896. Its totient is φ = 44291520.

The previous prime is 56179483. The next prime is 56179489. The reversal of 56179487 is 78497165.

It is not a de Polignac number, because 56179487 - 2² = 56179483 is a prime.

It is a super-2 number, since 2×56179487² = 6312269519166338, which contains 22 as substring.

It is a Duffinian number.

56179487 is a modest number, since divided by 179487 gives 56 as remainder.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56179483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 199787 + ... + 200067.

Almost surely, 2^56179487 is an apocalyptic number.

56179487 is a deficient number, since it is larger than the sum of its proper divisors (13623409).

56179487 is an frugal number, since it uses more digits than its factorization.

56179487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 301 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 56179487 is about 7495.2976591994. The cubic root of 56179487 is about 382.9945462073.

The spelling of 56179487 in words is "fifty-six million, one hundred seventy-nine thousand, four hundred eighty-seven".