255587605 has 64 divisors (see below), whose sum is σ = 404103168. Its totient is φ = 150589440.

The previous prime is 255587573. The next prime is 255587609. The reversal of 255587605 is 506785552.

It is not a de Polignac number, because 255587605 - 2⁵ = 255587573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255587609) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1338060 + ... + 1338250.

It is an arithmetic number, because the mean of its divisors is an integer number (6314112).

Almost surely, 2^255587605 is an apocalyptic number.

It is an amenable number.

255587605 is a deficient number, since it is larger than the sum of its proper divisors (148515563).

255587605 is a wasteful number, since it uses less digits than its factorization.

255587605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 255587605 is about 15987.1074619520. The cubic root of 255587605 is about 634.6192811552.

The spelling of 255587605 in words is "two hundred fifty-five million, five hundred eighty-seven thousand, six hundred five".