56790558 has 56 divisors (see below), whose sum is σ = 139370616. Its totient is φ = 17204400.

The previous prime is 56790553. The next prime is 56790577. The reversal of 56790558 is 85509765.

56790558 is a `hidden beast` number, since 5 + 6 + 7 + 90 + 558 = 666.

56790558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×56790558³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56790551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14268 + ... + 17808.

It is an arithmetic number, because the mean of its divisors is an integer number (2488761).

Almost surely, 2^56790558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56790558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69685308).

56790558 is an abundant number, since it is smaller than the sum of its proper divisors (82580058).

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

56790558 is a wasteful number, since it uses less digits than its factorization.

56790558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 56790558 is about 7535.9510348728. The cubic root of 56790558 is about 384.3781674932.

It can be divided in two parts, 567 and 90558, that added together give a cube (91125 = 45³).

The spelling of 56790558 in words is "fifty-six million, seven hundred ninety thousand, five hundred fifty-eight".