56328558 has 32 divisors (see below), whose sum is σ = 132354432. Its totient is φ = 15756000.

The previous prime is 56328553. The next prime is 56328593. The reversal of 56328558 is 85582365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56328553) 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, 31968 + ... + 33683.

It is an arithmetic number, because the mean of its divisors is an integer number (4136076).

Almost surely, 2^56328558 is an apocalyptic number.

56328558 is an abundant number, since it is smaller than the sum of its proper divisors (76025874).

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

56328558 is a wasteful number, since it uses less digits than its factorization.

56328558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65680.

The product of its digits is 288000, while the sum is 42.

The square root of 56328558 is about 7505.2353727248. The cubic root of 56328558 is about 383.3330028142. Note that the first 3 decimals are identical.

The spelling of 56328558 in words is "fifty-six million, three hundred twenty-eight thousand, five hundred fifty-eight".