55317256 has 8 divisors (see below), whose sum is σ = 103719870. Its totient is φ = 27658624.

The previous prime is 55317253. The next prime is 55317271. The reversal of 55317256 is 65271355.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 52900 = 7434^2 + 230^2 .

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

It is a super-2 number, since 2×55317256² = 6119997622739072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55317253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3457321 + ... + 3457336.

Almost surely, 2^55317256 is an apocalyptic number.

It is an amenable number.

55317256 is a deficient number, since it is larger than the sum of its proper divisors (48402614).

55317256 is a wasteful number, since it uses less digits than its factorization.

55317256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914663 (or 6914659 counting only the distinct ones).

The product of its digits is 31500, while the sum is 34.

The square root of 55317256 is about 7437.5571258310. The cubic root of 55317256 is about 381.0250624755.

The spelling of 55317256 in words is "fifty-five million, three hundred seventeen thousand, two hundred fifty-six".