56659500 has 120 divisors (see below), whose sum is σ = 184984800. Its totient is φ = 15098400.

The previous prime is 56659489. The next prime is 56659513. The reversal of 56659500 is 595665.

56659500 is a `hidden beast` number, since 5 + 66 + 595 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39801 + ... + 41199.

It is an arithmetic number, because the mean of its divisors is an integer number (1541540).

Almost surely, 2^56659500 is an apocalyptic number.

56659500 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 56659500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92492400).

56659500 is an abundant number, since it is smaller than the sum of its proper divisors (128325300).

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

56659500 is a wasteful number, since it uses less digits than its factorization.

56659500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 56659500 is about 7527.2504940383. The cubic root of 56659500 is about 384.0822577687.

The spelling of 56659500 in words is "fifty-six million, six hundred fifty-nine thousand, five hundred".