56378660 has 24 divisors (see below), whose sum is σ = 127503096. Its totient is φ = 20816640.

The previous prime is 56378659. The next prime is 56378669. The reversal of 56378660 is 6687365.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 56310016 = 262^2 + 7504^2 .

It is not an unprimeable number, because it can be changed into a prime (56378669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108161 + ... + 108680.

It is an arithmetic number, because the mean of its divisors is an integer number (5312629).

Almost surely, 2^56378660 is an apocalyptic number.

It is an amenable number.

56378660 is an abundant number, since it is smaller than the sum of its proper divisors (71124436).

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

56378660 is a wasteful number, since it uses less digits than its factorization.

56378660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216863 (or 216861 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 56378660 is about 7508.5724342248. The cubic root of 56378660 is about 383.4466222603.

The spelling of 56378660 in words is "fifty-six million, three hundred seventy-eight thousand, six hundred sixty".