255297353172 has 24 divisors (see below), whose sum is σ = 601835000256. Its totient is φ = 84221806848.

The previous prime is 255297353147. The next prime is 255297353191. The reversal of 255297353172 is 271353792552.

It is a super-3 number, since 3×255297353172³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109662648 + ... + 109664975.

It is an arithmetic number, because the mean of its divisors is an integer number (25076458344).

Almost surely, 2^255297353172 is an apocalyptic number.

It is an amenable number.

255297353172 is an abundant number, since it is smaller than the sum of its proper divisors (346537647084).

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

255297353172 is a wasteful number, since it uses less digits than its factorization.

255297353172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219327727 (or 219327725 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 51.

The spelling of 255297353172 in words is "two hundred fifty-five billion, two hundred ninety-seven million, three hundred fifty-three thousand, one hundred seventy-two".