56577330 has 48 divisors (see below), whose sum is σ = 147813120. Its totient is φ = 15014304.

The previous prime is 56577319. The next prime is 56577359. The reversal of 56577330 is 3377565.

56577330 is a `hidden beast` number, since 56 + 577 + 3 + 30 = 666.

It is a Curzon number.

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, 18661 + ... + 21479.

It is an arithmetic number, because the mean of its divisors is an integer number (3079440).

Almost surely, 2^56577330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56577330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73906560).

56577330 is an abundant number, since it is smaller than the sum of its proper divisors (91235790).

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

56577330 is a wasteful number, since it uses less digits than its factorization.

56577330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 36.

The square root of 56577330 is about 7521.7903453899. The cubic root of 56577330 is about 383.8964971696.

The spelling of 56577330 in words is "fifty-six million, five hundred seventy-seven thousand, three hundred thirty".