56681534 has 24 divisors (see below), whose sum is σ = 106513848. Its totient is φ = 22422960.

The previous prime is 56681533. The next prime is 56681543. The reversal of 56681534 is 43518665.

56681534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56681533) 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 11 ways as a sum of consecutive naturals, for example, 20972 + ... + 23519.

It is an arithmetic number, because the mean of its divisors is an integer number (4438077).

Almost surely, 2^56681534 is an apocalyptic number.

56681534 is a deficient number, since it is larger than the sum of its proper divisors (49832314).

56681534 is a wasteful number, since it uses less digits than its factorization.

56681534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44520 (or 44513 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 56681534 is about 7528.7139672058. The cubic root of 56681534 is about 384.1320391921.

The spelling of 56681534 in words is "fifty-six million, six hundred eighty-one thousand, five hundred thirty-four".