55912782 has 16 divisors (see below), whose sum is σ = 117711360. Its totient is φ = 17656632.

The previous prime is 55912781. The next prime is 55912789. The reversal of 55912782 is 28721955.

55912782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55912782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55912781) 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 7 ways as a sum of consecutive naturals, for example, 245118 + ... + 245345.

It is an arithmetic number, because the mean of its divisors is an integer number (7356960).

Almost surely, 2^55912782 is an apocalyptic number.

55912782 is an abundant number, since it is smaller than the sum of its proper divisors (61798578).

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

55912782 is a wasteful number, since it uses less digits than its factorization.

55912782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490487.

The product of its digits is 50400, while the sum is 39.

The square root of 55912782 is about 7477.4850050000. The cubic root of 55912782 is about 382.3875118833.

The spelling of 55912782 in words is "fifty-five million, nine hundred twelve thousand, seven hundred eighty-two".