56497860 has 72 divisors (see below), whose sum is σ = 172140696. Its totient is φ = 14999040.

The previous prime is 56497843. The next prime is 56497907. The reversal of 56497860 is 6879465.

56497860 is a `hidden beast` number, since 564 + 9 + 7 + 86 + 0 = 666.

56497860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 55621764 = 936^2 + 7458^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 50022 + ... + 51138.

It is an arithmetic number, because the mean of its divisors is an integer number (2390843).

Almost surely, 2^56497860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56497860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86070348).

56497860 is an abundant number, since it is smaller than the sum of its proper divisors (115642836).

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

56497860 is a wasteful number, since it uses less digits than its factorization.

56497860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 56497860 is about 7516.5058371560. The cubic root of 56497860 is about 383.7166692537.

The spelling of 56497860 in words is "fifty-six million, four hundred ninety-seven thousand, eight hundred sixty".