56199280 has 120 divisors (see below), whose sum is σ = 146280816. Its totient is φ = 19998720.

The previous prime is 56199277. The next prime is 56199287. The reversal of 56199280 is 8299165.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56199287) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1306939 + ... + 1306981.

Almost surely, 2^56199280 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 56199280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73140408).

56199280 is an abundant number, since it is smaller than the sum of its proper divisors (90081536).

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

56199280 is a wasteful number, since it uses less digits than its factorization.

56199280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 56199280 is about 7496.6179040952. The cubic root of 56199280 is about 383.0395194492.

The spelling of 56199280 in words is "fifty-six million, one hundred ninety-nine thousand, two hundred eighty".