55145756 has 12 divisors (see below), whose sum is σ = 102181968. Its totient is φ = 25950912.

The previous prime is 55145729. The next prime is 55145801. The reversal of 55145756 is 65754155.

55145756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 405416 + ... + 405551.

It is an arithmetic number, because the mean of its divisors is an integer number (8515164).

Almost surely, 2^55145756 is an apocalyptic number.

It is an amenable number.

55145756 is a deficient number, since it is larger than the sum of its proper divisors (47036212).

55145756 is a wasteful number, since it uses less digits than its factorization.

55145756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810988 (or 810986 counting only the distinct ones).

The product of its digits is 105000, while the sum is 38.

The square root of 55145756 is about 7426.0188526558. The cubic root of 55145756 is about 380.6308910482.

The spelling of 55145756 in words is "fifty-five million, one hundred forty-five thousand, seven hundred fifty-six".