255040531 has 4 divisors (see below), whose sum is σ = 255609000. Its totient is φ = 254472064.

The previous prime is 255040523. The next prime is 255040547. The reversal of 255040531 is 135040552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255040531 - 2³ = 255040523 is a prime.

It is a super-2 number, since 2×255040531² = 130091344905523922, 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 = 255040496 and 255040505.

It is not an unprimeable number, because it can be changed into a prime (255040561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283561 + ... + 284458.

It is an arithmetic number, because the mean of its divisors is an integer number (63902250).

Almost surely, 2^255040531 is an apocalyptic number.

255040531 is a deficient number, since it is larger than the sum of its proper divisors (568469).

255040531 is an equidigital number, since it uses as much as digits as its factorization.

255040531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568468.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 255040531 is about 15969.9884470841. The cubic root of 255040531 is about 634.1661661798.

The spelling of 255040531 in words is "two hundred fifty-five million, forty thousand, five hundred thirty-one".