255265621 has 8 divisors (see below), whose sum is σ = 277571840. Its totient is φ = 233340912.

The previous prime is 255265609. The next prime is 255265639. The reversal of 255265621 is 126562552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255265621 - 2¹¹ = 255263573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255265691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93981 + ... + 96658.

It is an arithmetic number, because the mean of its divisors is an integer number (34696480).

Almost surely, 2^255265621 is an apocalyptic number.

It is an amenable number.

255265621 is a deficient number, since it is larger than the sum of its proper divisors (22306219).

255265621 is a wasteful number, since it uses less digits than its factorization.

255265621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190755.

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

The square root of 255265621 is about 15977.0341740888. The cubic root of 255265621 is about 634.3526757365.

The spelling of 255265621 in words is "two hundred fifty-five million, two hundred sixty-five thousand, six hundred twenty-one".