56378681 has 16 divisors (see below), whose sum is σ = 65577600. Its totient is φ = 48077568.

The previous prime is 56378671. The next prime is 56378683. The reversal of 56378681 is 18687365.

56378681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 56378681 - 2⁶ = 56378617 is a prime.

It is a super-2 number, since 2×56378681² = 6357111342599522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56378683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3635 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (4098600).

Almost surely, 2^56378681 is an apocalyptic number.

It is an amenable number.

56378681 is a deficient number, since it is larger than the sum of its proper divisors (9198919).

56378681 is a wasteful number, since it uses less digits than its factorization.

56378681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648.

The product of its digits is 241920, while the sum is 44.

The square root of 56378681 is about 7508.5738326263. The cubic root of 56378681 is about 383.4466698692.

The spelling of 56378681 in words is "fifty-six million, three hundred seventy-eight thousand, six hundred eighty-one".