56799840 has 96 divisors (see below), whose sum is σ = 181482336. Its totient is φ = 14929920.

The previous prime is 56799833. The next prime is 56799851. The reversal of 56799840 is 4899765.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 56799840.

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 15 ways as a sum of consecutive naturals, for example, 34230 + ... + 35850.

It is an arithmetic number, because the mean of its divisors is an integer number (1890441).

Almost surely, 2^56799840 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 56799840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90741168).

56799840 is an abundant number, since it is smaller than the sum of its proper divisors (124682496).

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

56799840 is a wasteful number, since it uses less digits than its factorization.

56799840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 56799840 is about 7536.5668576614. The cubic root of 56799840 is about 384.3991076161.

The spelling of 56799840 in words is "fifty-six million, seven hundred ninety-nine thousand, eight hundred forty".