55723782 has 16 divisors (see below), whose sum is σ = 113018112. Its totient is φ = 18312840.

The previous prime is 55723769. The next prime is 55723799. The reversal of 55723782 is 28732755.

It is a self number, because there is not a number n which added to its sum of digits gives 55723782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64978 + ... + 65829.

It is an arithmetic number, because the mean of its divisors is an integer number (7063632).

Almost surely, 2^55723782 is an apocalyptic number.

55723782 is an abundant number, since it is smaller than the sum of its proper divisors (57294330).

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

55723782 is a wasteful number, since it uses less digits than its factorization.

55723782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130883.

The product of its digits is 117600, while the sum is 39.

The square root of 55723782 is about 7464.8363679320. The cubic root of 55723782 is about 381.9561685041.

The spelling of 55723782 in words is "fifty-five million, seven hundred twenty-three thousand, seven hundred eighty-two".