255959628 has 12 divisors (see below), whose sum is σ = 597239160. Its totient is φ = 85319872.

The previous prime is 255959611. The next prime is 255959629. The reversal of 255959628 is 826959552.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (255959629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10664973 + ... + 10664996.

It is an arithmetic number, because the mean of its divisors is an integer number (49769930).

Almost surely, 2^255959628 is an apocalyptic number.

It is an amenable number.

255959628 is an abundant number, since it is smaller than the sum of its proper divisors (341279532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255959628 is a wasteful number, since it uses less digits than its factorization.

255959628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21329976 (or 21329974 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The square root of 255959628 is about 15998.7383252555. The cubic root of 255959628 is about 634.9270406183.

The spelling of 255959628 in words is "two hundred fifty-five million, nine hundred fifty-nine thousand, six hundred twenty-eight".