56179645 has 16 divisors (see below), whose sum is σ = 72025200. Its totient is φ = 41918464.

The previous prime is 56179631. The next prime is 56179649. The reversal of 56179645 is 54697165.

It can be written as a sum of positive squares in 8 ways, for example, as 5968249 + 50211396 = 2443^2 + 7086^2 .

It is not a de Polignac number, because 56179645 - 2¹⁵ = 56146877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56179649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6681 + ... + 12529.

It is an arithmetic number, because the mean of its divisors is an integer number (4501575).

Almost surely, 2^56179645 is an apocalyptic number.

It is an amenable number.

56179645 is a deficient number, since it is larger than the sum of its proper divisors (15845555).

56179645 is a wasteful number, since it uses less digits than its factorization.

56179645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984.

The product of its digits is 226800, while the sum is 43.

The square root of 56179645 is about 7495.3081991336. The cubic root of 56179645 is about 382.9949052535.

The spelling of 56179645 in words is "fifty-six million, one hundred seventy-nine thousand, six hundred forty-five".