255279278022 has 16 divisors (see below), whose sum is σ = 513410840640. Its totient is φ = 84617711912.

The previous prime is 255279278021. The next prime is 255279278053. The reversal of 255279278022 is 220872972552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255279278021) 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, 118844028 + ... + 118846175.

It is an arithmetic number, because the mean of its divisors is an integer number (32088177540).

Almost surely, 2^255279278022 is an apocalyptic number.

255279278022 is an abundant number, since it is smaller than the sum of its proper divisors (258131562618).

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

255279278022 is a wasteful number, since it uses less digits than its factorization.

255279278022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237690387.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 255279278022 in words is "two hundred fifty-five billion, two hundred seventy-nine million, two hundred seventy-eight thousand, twenty-two".