255651465431 has 12 divisors (see below), whose sum is σ = 263402514792. Its totient is φ = 248115316176.

The previous prime is 255651465427. The next prime is 255651465439. The reversal of 255651465431 is 134564156552.

It is a happy number.

255651465431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255651465431 - 2² = 255651465427 is a prime.

It is a super-2 number, since 2×255651465431² (a number of 24 digits) 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 (255651465439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150041 + ... + 730626.

It is an arithmetic number, because the mean of its divisors is an integer number (21950209566).

Almost surely, 2^255651465431 is an apocalyptic number.

255651465431 is a deficient number, since it is larger than the sum of its proper divisors (7751049361).

255651465431 is an equidigital number, since it uses as much as digits as its factorization.

255651465431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880910 (or 880867 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 47.

The spelling of 255651465431 in words is "two hundred fifty-five billion, six hundred fifty-one million, four hundred sixty-five thousand, four hundred thirty-one".