56009736 has 96 divisors (see below), whose sum is σ = 157872000. Its totient is φ = 17926272.

The previous prime is 56009729. The next prime is 56009741. The reversal of 56009736 is 63790065.

It is a happy number.

56009736 is a `hidden beast` number, since 560 + 0 + 97 + 3 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 56009736.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244470 + ... + 244698.

It is an arithmetic number, because the mean of its divisors is an integer number (1644500).

Almost surely, 2^56009736 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 56009736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78936000).

56009736 is an abundant number, since it is smaller than the sum of its proper divisors (101862264).

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

56009736 is a wasteful number, since it uses less digits than its factorization.

56009736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 56009736 is about 7483.9652591390. The cubic root of 56009736 is about 382.6084070530.

The spelling of 56009736 in words is "fifty-six million, nine thousand, seven hundred thirty-six".