255523731 has 8 divisors (see below), whose sum is σ = 351688704. Its totient is φ = 164853960.

The previous prime is 255523703. The next prime is 255523733. The reversal of 255523731 is 137325552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255523731 - 2¹¹ = 255521683 is a prime.

It is a super-2 number, since 2×255523731² = 130584754208320722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255523692 and 255523701.

It is not an unprimeable number, because it can be changed into a prime (255523733) 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 7 ways as a sum of consecutive naturals, for example, 1373691 + ... + 1373876.

It is an arithmetic number, because the mean of its divisors is an integer number (43961088).

Almost surely, 2^255523731 is an apocalyptic number.

255523731 is a deficient number, since it is larger than the sum of its proper divisors (96164973).

255523731 is a wasteful number, since it uses less digits than its factorization.

255523731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747601.

The product of its digits is 31500, while the sum is 33.

The square root of 255523731 is about 15985.1096649351. The cubic root of 255523731 is about 634.5664107651.

The spelling of 255523731 in words is "two hundred fifty-five million, five hundred twenty-three thousand, seven hundred thirty-one".