56619648 has 160 divisors (see below), whose sum is σ = 173775360. Its totient is φ = 18289152.

The previous prime is 56619637. The next prime is 56619649. The reversal of 56619648 is 84691665.

It is not an unprimeable number, because it can be changed into a prime (56619649) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 445761 + ... + 445887.

It is an arithmetic number, because the mean of its divisors is an integer number (1086096).

Almost surely, 2^56619648 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 56619648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86887680).

56619648 is an abundant number, since it is smaller than the sum of its proper divisors (117155712).

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

56619648 is a wasteful number, since it uses less digits than its factorization.

56619648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 175 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 56619648 is about 7524.6028466624. The cubic root of 56619648 is about 383.9921873410.

The spelling of 56619648 in words is "fifty-six million, six hundred nineteen thousand, six hundred forty-eight".