55859790 has 64 divisors (see below), whose sum is σ = 162238464. Its totient is φ = 12016128.

The previous prime is 55859777. The next prime is 55859809. The reversal of 55859790 is 9795855.

55859790 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-2 number, since 2×55859790² = 6240632277688200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4254 + ... + 11393.

It is an arithmetic number, because the mean of its divisors is an integer number (2534976).

Almost surely, 2^55859790 is an apocalyptic number.

55859790 is an abundant number, since it is smaller than the sum of its proper divisors (106378674).

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

55859790 is a wasteful number, since it uses less digits than its factorization.

55859790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15681.

The product of its (nonzero) digits is 567000, while the sum is 48.

The square root of 55859790 is about 7473.9407276215. The cubic root of 55859790 is about 382.2666696041.

The spelling of 55859790 in words is "fifty-five million, eight hundred fifty-nine thousand, seven hundred ninety".