255130031551 has 4 divisors (see below), whose sum is σ = 256078470600. Its totient is φ = 254181592504.

The previous prime is 255130031549. The next prime is 255130031561. The reversal of 255130031551 is 155130031552.

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 255130031551 - 2¹ = 255130031549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255130031501) 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, 474219121 + ... + 474219658.

It is an arithmetic number, because the mean of its divisors is an integer number (64019617650).

Almost surely, 2^255130031551 is an apocalyptic number.

255130031551 is a deficient number, since it is larger than the sum of its proper divisors (948439049).

255130031551 is an equidigital number, since it uses as much as digits as its factorization.

255130031551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948439048.

The product of its (nonzero) digits is 11250, while the sum is 31.

Subtracting from 255130031551 its reverse (155130031552), we obtain a palindrome (99999999999).

The spelling of 255130031551 in words is "two hundred fifty-five billion, one hundred thirty million, thirty-one thousand, five hundred fifty-one".