55662774 has 16 divisors (see below), whose sum is σ = 115164720. Its totient is φ = 17914400.

The previous prime is 55662767. The next prime is 55662779. The reversal of 55662774 is 47726655.

55662774 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 3×55662774³ (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 (55662779) 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, 159777 + ... + 160124.

It is an arithmetic number, because the mean of its divisors is an integer number (7197795).

Almost surely, 2^55662774 is an apocalyptic number.

55662774 is an abundant number, since it is smaller than the sum of its proper divisors (59501946).

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

55662774 is a wasteful number, since it uses less digits than its factorization.

55662774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319935.

The product of its digits is 352800, while the sum is 42.

The square root of 55662774 is about 7460.7488900244. The cubic root of 55662774 is about 381.8167254016.

The spelling of 55662774 in words is "fifty-five million, six hundred sixty-two thousand, seven hundred seventy-four".