55911142 has 8 divisors (see below), whose sum is σ = 95847696. Its totient is φ = 23961912.

The previous prime is 55911133. The next prime is 55911169. The reversal of 55911142 is 24111955.

55911142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55911142.

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 3 ways as a sum of consecutive naturals, for example, 1996813 + ... + 1996840.

It is an arithmetic number, because the mean of its divisors is an integer number (11980962).

Almost surely, 2^55911142 is an apocalyptic number.

55911142 is a deficient number, since it is larger than the sum of its proper divisors (39936554).

55911142 is a wasteful number, since it uses less digits than its factorization.

55911142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993662.

The product of its digits is 1800, while the sum is 28.

The square root of 55911142 is about 7477.3753416557. The cubic root of 55911142 is about 382.3837731935.

It can be divided in two parts, 559111 and 42, that added together give a triangular number (559153 = T₁₀₅₇).

The spelling of 55911142 in words is "fifty-five million, nine hundred eleven thousand, one hundred forty-two".