255043031 has 2 divisors, whose sum is σ = 255043032. Its totient is φ = 255043030.

The previous prime is 255042989. The next prime is 255043043. The reversal of 255043031 is 130340552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255043031 is a prime.

It is a super-2 number, since 2×255043031² = 130093895323333922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 255042988 and 255043006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255043091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127521515 + 127521516.

It is an arithmetic number, because the mean of its divisors is an integer number (127521516).

Almost surely, 2^255043031 is an apocalyptic number.

255043031 is a deficient number, since it is larger than the sum of its proper divisors (1).

255043031 is an equidigital number, since it uses as much as digits as its factorization.

255043031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 255043031 is about 15970.0667187085. The cubic root of 255043031 is about 634.1682382821.

Adding to 255043031 its reverse (130340552), we get a palindrome (385383583).

The spelling of 255043031 in words is "two hundred fifty-five million, forty-three thousand, thirty-one".