255652621 has 16 divisors (see below), whose sum is σ = 294940800. Its totient is φ = 217068480.

The previous prime is 255652583. The next prime is 255652627. The reversal of 255652621 is 126256552.

It is a cyclic number.

It is not a de Polignac number, because 255652621 - 2²³ = 247264013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255652627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 554331 + ... + 554791.

It is an arithmetic number, because the mean of its divisors is an integer number (18433800).

Almost surely, 2^255652621 is an apocalyptic number.

It is an amenable number.

255652621 is a deficient number, since it is larger than the sum of its proper divisors (39288179).

255652621 is a wasteful number, since it uses less digits than its factorization.

255652621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its digits is 36000, while the sum is 34.

The square root of 255652621 is about 15989.1407211269. The cubic root of 255652621 is about 634.6730877670.

The spelling of 255652621 in words is "two hundred fifty-five million, six hundred fifty-two thousand, six hundred twenty-one".