255256461 has 16 divisors (see below), whose sum is σ = 394600320. Its totient is φ = 162771840.

The previous prime is 255256459. The next prime is 255256499. The reversal of 255256461 is 164652552.

255256461 is a `hidden beast` number, since 2 + 5 + 5 + 2 + 5 + 646 + 1 = 666.

It is not a de Polignac number, because 255256461 - 2¹ = 255256459 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255756461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204900 + ... + 206141.

It is an arithmetic number, because the mean of its divisors is an integer number (24662520).

Almost surely, 2^255256461 is an apocalyptic number.

It is an amenable number.

255256461 is a deficient number, since it is larger than the sum of its proper divisors (139343859).

255256461 is a wasteful number, since it uses less digits than its factorization.

255256461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411073 (or 411067 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 255256461 is about 15976.7475100535. The cubic root of 255256461 is about 634.3450879018.

The spelling of 255256461 in words is "two hundred fifty-five million, two hundred fifty-six thousand, four hundred sixty-one".