56159340 has 96 divisors (see below), whose sum is σ = 165703104. Its totient is φ = 14192640.

The previous prime is 56159339. The next prime is 56159351. The reversal of 56159340 is 4395165.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90712 + ... + 91328.

It is an arithmetic number, because the mean of its divisors is an integer number (1726074).

Almost surely, 2^56159340 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 56159340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82851552).

56159340 is an abundant number, since it is smaller than the sum of its proper divisors (109543764).

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

56159340 is a wasteful number, since it uses less digits than its factorization.

56159340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56159340 is about 7493.9535627064. The cubic root of 56159340 is about 382.9487577645.

The spelling of 56159340 in words is "fifty-six million, one hundred fifty-nine thousand, three hundred forty".