255317415 has 16 divisors (see below), whose sum is σ = 413100000. Its totient is φ = 134638592.

The previous prime is 255317393. The next prime is 255317423. The reversal of 255317415 is 514713552.

It is a cyclic number.

It is not a de Polignac number, because 255317415 - 2¹⁴ = 255301031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94290 + ... + 96959.

It is an arithmetic number, because the mean of its divisors is an integer number (25818750).

Almost surely, 2^255317415 is an apocalyptic number.

255317415 is a deficient number, since it is larger than the sum of its proper divisors (157782585).

255317415 is a wasteful number, since it uses less digits than its factorization.

255317415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191346.

The product of its digits is 21000, while the sum is 33.

The square root of 255317415 is about 15978.6549809425. The cubic root of 255317415 is about 634.3955767226.

The spelling of 255317415 in words is "two hundred fifty-five million, three hundred seventeen thousand, four hundred fifteen".