255372431 has 4 divisors (see below), whose sum is σ = 255653664. Its totient is φ = 255091200.

The previous prime is 255372421. The next prime is 255372437. The reversal of 255372431 is 134273552.

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 255372431 - 2¹⁰ = 255371407 is a prime.

It is a super-2 number, since 2×255372431² = 130430157029699522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255372437) 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, 139250 + ... + 141071.

It is an arithmetic number, because the mean of its divisors is an integer number (63913416).

Almost surely, 2^255372431 is an apocalyptic number.

255372431 is a deficient number, since it is larger than the sum of its proper divisors (281233).

255372431 is an equidigital number, since it uses as much as digits as its factorization.

255372431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281232.

The product of its digits is 25200, while the sum is 32.

The square root of 255372431 is about 15980.3764348654. The cubic root of 255372431 is about 634.4411401382.

The spelling of 255372431 in words is "two hundred fifty-five million, three hundred seventy-two thousand, four hundred thirty-one".