255634645 has 32 divisors (see below), whose sum is σ = 376934400. Its totient is φ = 162513216.

The previous prime is 255634619. The next prime is 255634679. The reversal of 255634645 is 546436552.

It is a happy number.

It is not a de Polignac number, because 255634645 - 2⁹ = 255634133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255634598 and 255634607.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 27166 + ... + 35344.

It is an arithmetic number, because the mean of its divisors is an integer number (11779200).

Almost surely, 2^255634645 is an apocalyptic number.

It is an amenable number.

255634645 is a deficient number, since it is larger than the sum of its proper divisors (121299755).

255634645 is a wasteful number, since it uses less digits than its factorization.

255634645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257.

The product of its digits is 432000, while the sum is 40.

The square root of 255634645 is about 15988.5785797237. The cubic root of 255634645 is about 634.6582119161.

The spelling of 255634645 in words is "two hundred fifty-five million, six hundred thirty-four thousand, six hundred forty-five".