55917256 has 8 divisors (see below), whose sum is σ = 104844870. Its totient is φ = 27958624.

The previous prime is 55917241. The next prime is 55917269. The reversal of 55917256 is 65271955.

55917256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43428100 + 12489156 = 6590^2 + 3534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 3494821 + ... + 3494836.

Almost surely, 2^55917256 is an apocalyptic number.

It is an amenable number.

55917256 is a deficient number, since it is larger than the sum of its proper divisors (48927614).

55917256 is a wasteful number, since it uses less digits than its factorization.

55917256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989663 (or 6989659 counting only the distinct ones).

The product of its digits is 94500, while the sum is 40.

The square root of 55917256 is about 7477.7841637747. The cubic root of 55917256 is about 382.3977108399.

The spelling of 55917256 in words is "fifty-five million, nine hundred seventeen thousand, two hundred fifty-six".