55727758 has 32 divisors (see below), whose sum is σ = 89828352. Its totient is φ = 25872000.

The previous prime is 55727753. The next prime is 55727767. The reversal of 55727758 is 85772755.

55727758 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55727753) 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 15 ways as a sum of consecutive naturals, for example, 368983 + ... + 369133.

It is an arithmetic number, because the mean of its divisors is an integer number (2807136).

Almost surely, 2^55727758 is an apocalyptic number.

55727758 is a deficient number, since it is larger than the sum of its proper divisors (34100594).

55727758 is a wasteful number, since it uses less digits than its factorization.

55727758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its digits is 686000, while the sum is 46.

The square root of 55727758 is about 7465.1026784633. The cubic root of 55727758 is about 381.9652527261.

The spelling of 55727758 in words is "fifty-five million, seven hundred twenty-seven thousand, seven hundred fifty-eight".