255801527 has 4 divisors (see below), whose sum is σ = 258148440. Its totient is φ = 253454616.

The previous prime is 255801451. The next prime is 255801529. The reversal of 255801527 is 725108552.

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 255801527 - 2¹⁴ = 255785143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255801529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173293 + ... + 1173510.

It is an arithmetic number, because the mean of its divisors is an integer number (64537110).

Almost surely, 2^255801527 is an apocalyptic number.

255801527 is a deficient number, since it is larger than the sum of its proper divisors (2346913).

255801527 is a wasteful number, since it uses less digits than its factorization.

255801527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346912.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 255801527 is about 15993.7965161496. The cubic root of 255801527 is about 634.7962865667.

The spelling of 255801527 in words is "two hundred fifty-five million, eight hundred one thousand, five hundred twenty-seven".