56489178 has 32 divisors (see below), whose sum is σ = 114696000. Its totient is φ = 18546176.

The previous prime is 56489119. The next prime is 56489179. The reversal of 56489178 is 87198465.

It is a super-2 number, since 2×56489178² = 6382054462231368, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56489179) 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, 159850 + ... + 160202.

It is an arithmetic number, because the mean of its divisors is an integer number (3584250).

Almost surely, 2^56489178 is an apocalyptic number.

56489178 is an abundant number, since it is smaller than the sum of its proper divisors (58206822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56489178 is a wasteful number, since it uses less digits than its factorization.

56489178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its digits is 483840, while the sum is 48.

The square root of 56489178 is about 7515.9282859804. The cubic root of 56489178 is about 383.6970130592.

The spelling of 56489178 in words is "fifty-six million, four hundred eighty-nine thousand, one hundred seventy-eight".