255801225578 has 16 divisors (see below), whose sum is σ = 396093880320. Its totient is φ = 123770235600.

The previous prime is 255801225571. The next prime is 255801225583. The reversal of 255801225578 is 875522108552.

It is not an unprimeable number, because it can be changed into a prime (255801225571) 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, 2143463 + ... + 2259653.

It is an arithmetic number, because the mean of its divisors is an integer number (24755867520).

Almost surely, 2^255801225578 is an apocalyptic number.

255801225578 is a deficient number, since it is larger than the sum of its proper divisors (140292654742).

255801225578 is a wasteful number, since it uses less digits than its factorization.

255801225578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151733.

The product of its (nonzero) digits is 2240000, while the sum is 50.

The spelling of 255801225578 in words is "two hundred fifty-five billion, eight hundred one million, two hundred twenty-five thousand, five hundred seventy-eight".