255532531 has 8 divisors (see below), whose sum is σ = 264788480. Its totient is φ = 246427272.

The previous prime is 255532523. The next prime is 255532549. The reversal of 255532531 is 135235552.

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

It is a cyclic number.

It is not a de Polignac number, because 255532531 - 2³ = 255532523 is a prime.

It is a super-2 number, since 2×255532531² = 130593748798531922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255532493 and 255532502.

It is not an unprimeable number, because it can be changed into a prime (255532931) 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, 34215 + ... + 41008.

It is an arithmetic number, because the mean of its divisors is an integer number (33098560).

Almost surely, 2^255532531 is an apocalyptic number.

255532531 is a deficient number, since it is larger than the sum of its proper divisors (9255949).

255532531 is an equidigital number, since it uses as much as digits as its factorization.

255532531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75345.

The product of its digits is 22500, while the sum is 31.

The square root of 255532531 is about 15985.3849187312. The cubic root of 255532531 is about 634.5736953074.

The spelling of 255532531 in words is "two hundred fifty-five million, five hundred thirty-two thousand, five hundred thirty-one".