56905038 has 64 divisors (see below), whose sum is σ = 136800000. Its totient is φ = 17472672.

The previous prime is 56904997. The next prime is 56905073. The reversal of 56905038 is 83050965.

56905038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 56904993 and 56905011.

It is a congruent number.

It is an unprimeable number.

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, 37213 + ... + 38711.

It is an arithmetic number, because the mean of its divisors is an integer number (2137500).

Almost surely, 2^56905038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56905038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68400000).

56905038 is an abundant number, since it is smaller than the sum of its proper divisors (79894962).

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

56905038 is a wasteful number, since it uses less digits than its factorization.

56905038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 56905038 is about 7543.5428016284. The cubic root of 56905038 is about 384.6362742357.

The spelling of 56905038 in words is "fifty-six million, nine hundred five thousand, thirty-eight".