55727156 has 24 divisors (see below), whose sum is σ = 103488840. Its totient is φ = 26166272.

The previous prime is 55727149. The next prime is 55727167. The reversal of 55727156 is 65172755.

It can be written as a sum of positive squares in 4 ways, for example, as 7896100 + 47831056 = 2810^2 + 6916^2 .

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, 54506 + ... + 55518.

It is an arithmetic number, because the mean of its divisors is an integer number (4312035).

Almost surely, 2^55727156 is an apocalyptic number.

It is an amenable number.

55727156 is a deficient number, since it is larger than the sum of its proper divisors (47761684).

55727156 is a wasteful number, since it uses less digits than its factorization.

55727156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843 (or 1841 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 55727156 is about 7465.0623574087. The cubic root of 55727156 is about 381.9638773258.

The spelling of 55727156 in words is "fifty-five million, seven hundred twenty-seven thousand, one hundred fifty-six".