56517318 has 96 divisors (see below), whose sum is σ = 148625280. Its totient is φ = 15780960.

The previous prime is 56517313. The next prime is 56517319. The reversal of 56517318 is 81371565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56517313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100105 + ... + 100667.

It is an arithmetic number, because the mean of its divisors is an integer number (1548180).

Almost surely, 2^56517318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56517318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74312640).

56517318 is an abundant number, since it is smaller than the sum of its proper divisors (92107962).

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

56517318 is a wasteful number, since it uses less digits than its factorization.

56517318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 592 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 56517318 is about 7517.8000771502. The cubic root of 56517318 is about 383.7607151814.

The spelling of 56517318 in words is "fifty-six million, five hundred seventeen thousand, three hundred eighteen".