255630746 has 24 divisors (see below), whose sum is σ = 448347636. Its totient is φ = 108991680.

The previous prime is 255630733. The next prime is 255630761. The reversal of 255630746 is 647036552.

It can be written as a sum of positive squares in 2 ways, for example, as 154728721 + 100902025 = 12439^2 + 10045^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12686 + ... + 25926.

Almost surely, 2^255630746 is an apocalyptic number.

255630746 is a deficient number, since it is larger than the sum of its proper divisors (192716890).

255630746 is a wasteful number, since it uses less digits than its factorization.

255630746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13454 (or 13447 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 255630746 is about 15988.4566484699. The cubic root of 255630746 is about 634.6549852473.

The spelling of 255630746 in words is "two hundred fifty-five million, six hundred thirty thousand, seven hundred forty-six".