56156500 has 48 divisors (see below), whose sum is σ = 126637056. Its totient is φ = 21732000.

The previous prime is 56156459. The next prime is 56156563. The reversal of 56156500 is 565165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13689 + ... + 17311.

It is an arithmetic number, because the mean of its divisors is an integer number (2638272).

Almost surely, 2^56156500 is an apocalyptic number.

56156500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56156500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63318528).

56156500 is an abundant number, since it is smaller than the sum of its proper divisors (70480556).

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

56156500 is a wasteful number, since it uses less digits than its factorization.

56156500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673 (or 3661 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 56156500 is about 7493.7640742153. The cubic root of 56156500 is about 382.9423023657.

The spelling of 56156500 in words is "fifty-six million, one hundred fifty-six thousand, five hundred".