255812973 has 16 divisors (see below), whose sum is σ = 379989120. Its totient is φ = 151994304.

The previous prime is 255812861. The next prime is 255813011. The reversal of 255812973 is 379218552.

It is a happy number.

It is not a de Polignac number, because 255812973 - 2⁸ = 255812717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255812173) 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 15 ways as a sum of consecutive naturals, for example, 111961 + ... + 114222.

It is an arithmetic number, because the mean of its divisors is an integer number (23749320).

Almost surely, 2^255812973 is an apocalyptic number.

It is an amenable number.

255812973 is a deficient number, since it is larger than the sum of its proper divisors (124176147).

255812973 is a wasteful number, since it uses less digits than its factorization.

255812973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226228.

The product of its digits is 151200, while the sum is 42.

The square root of 255812973 is about 15994.1543383825. The cubic root of 255812973 is about 634.8057545450.

The spelling of 255812973 in words is "two hundred fifty-five million, eight hundred twelve thousand, nine hundred seventy-three".