255460491 has 96 divisors (see below), whose sum is σ = 472442880. Its totient is φ = 130636800.

The previous prime is 255460433. The next prime is 255460531. The reversal of 255460491 is 194064552.

255460491 is a `hidden beast` number, since 2 + 554 + 60 + 49 + 1 = 666.

It is not a de Polignac number, because 255460491 - 2⁶ = 255460427 is a prime.

It is a super-2 number, since 2×255460491² = 130520124923922162, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (255460091) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 757875 + ... + 758211.

It is an arithmetic number, because the mean of its divisors is an integer number (4921280).

Almost surely, 2^255460491 is an apocalyptic number.

255460491 is a deficient number, since it is larger than the sum of its proper divisors (216982389).

255460491 is a wasteful number, since it uses less digits than its factorization.

255460491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 255460491 is about 15983.1314516274. The cubic root of 255460491 is about 634.5140564746.

The spelling of 255460491 in words is "two hundred fifty-five million, four hundred sixty thousand, four hundred ninety-one".