255005430431 has 2 divisors, whose sum is σ = 255005430432. Its totient is φ = 255005430430.

The previous prime is 255005430419. The next prime is 255005430461. The reversal of 255005430431 is 134034500552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255005430431 - 2¹⁰ = 255005429407 is a prime.

It is a super-2 number, since 2×255005430431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255005430461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127502715215 + 127502715216.

It is an arithmetic number, because the mean of its divisors is an integer number (127502715216).

Almost surely, 2^255005430431 is an apocalyptic number.

255005430431 is a deficient number, since it is larger than the sum of its proper divisors (1).

255005430431 is an equidigital number, since it uses as much as digits as its factorization.

255005430431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 255005430431 its reverse (134034500552), we get a palindrome (389039930983).

The spelling of 255005430431 in words is "two hundred fifty-five billion, five million, four hundred thirty thousand, four hundred thirty-one".