56153240 has 64 divisors (see below), whose sum is σ = 148448160. Its totient is φ = 18846720.

The previous prime is 56153239. The next prime is 56153243. The reversal of 56153240 is 4235165.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56153243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812 + ... + 10628.

Almost surely, 2^56153240 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 56153240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74224080).

56153240 is an abundant number, since it is smaller than the sum of its proper divisors (92294920).

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

56153240 is a wasteful number, since it uses less digits than its factorization.

56153240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9848 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56153240 is about 7493.5465568715. The cubic root of 56153240 is about 382.9348920269.

The spelling of 56153240 in words is "fifty-six million, one hundred fifty-three thousand, two hundred forty".