56739606 has 64 divisors (see below), whose sum is σ = 142442496. Its totient is φ = 14637600.

The previous prime is 56739601. The next prime is 56739607. The reversal of 56739606 is 60693765.

56739606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56739601) 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 31 ways as a sum of consecutive naturals, for example, 87921 + ... + 88563.

It is an arithmetic number, because the mean of its divisors is an integer number (2225664).

Almost surely, 2^56739606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56739606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71221248).

56739606 is an abundant number, since it is smaller than the sum of its proper divisors (85702890).

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

56739606 is a wasteful number, since it uses less digits than its factorization.

56739606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 56739606 is about 7532.5696810584. The cubic root of 56739606 is about 384.2631795028.

The spelling of 56739606 in words is "fifty-six million, seven hundred thirty-nine thousand, six hundred six".