255913579 has 4 divisors (see below), whose sum is σ = 258261520. Its totient is φ = 253565640.

The previous prime is 255913573. The next prime is 255913583. The reversal of 255913579 is 975319552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255913579 - 2⁹ = 255913067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255913573) 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, 1173807 + ... + 1174024.

It is an arithmetic number, because the mean of its divisors is an integer number (64565380).

Almost surely, 2^255913579 is an apocalyptic number.

255913579 is a deficient number, since it is larger than the sum of its proper divisors (2347941).

255913579 is a wasteful number, since it uses less digits than its factorization.

255913579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347940.

The product of its digits is 425250, while the sum is 46.

The square root of 255913579 is about 15997.2991157883. The cubic root of 255913579 is about 634.8889623361. Note that the first 3 decimals are identical.

The spelling of 255913579 in words is "two hundred fifty-five million, nine hundred thirteen thousand, five hundred seventy-nine".