255142531 has 4 divisors (see below), whose sum is σ = 291591472. Its totient is φ = 218693592.

The previous prime is 255142501. The next prime is 255142553. The reversal of 255142531 is 135241552.

255142531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 255142531 - 2⁷ = 255142403 is a prime.

It is a super-2 number, since 2×255142531² = 130195422250171922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255142531.

It is not an unprimeable number, because it can be changed into a prime (255142501) 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, 18224460 + ... + 18224473.

It is an arithmetic number, because the mean of its divisors is an integer number (72897868).

Almost surely, 2^255142531 is an apocalyptic number.

255142531 is a deficient number, since it is larger than the sum of its proper divisors (36448941).

255142531 is an equidigital number, since it uses as much as digits as its factorization.

255142531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36448940.

The product of its digits is 6000, while the sum is 28.

The square root of 255142531 is about 15973.1816179495. The cubic root of 255142531 is about 634.2506969631.

The spelling of 255142531 in words is "two hundred fifty-five million, one hundred forty-two thousand, five hundred thirty-one".