15255326291 has 2 divisors, whose sum is σ = 15255326292. Its totient is φ = 15255326290.

The previous prime is 15255326267. The next prime is 15255326293. The reversal of 15255326291 is 19262355251.

It is a strong prime.

It is an emirp because it is prime and its reverse (19262355251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15255326291 is a prime.

Together with 15255326293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15255326293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627663145 + 7627663146.

It is an arithmetic number, because the mean of its divisors is an integer number (7627663146).

Almost surely, 2^15255326291 is an apocalyptic number.

15255326291 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255326291 is an equidigital number, since it uses as much as digits as its factorization.

15255326291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 41.

The spelling of 15255326291 in words is "fifteen billion, two hundred fifty-five million, three hundred twenty-six thousand, two hundred ninety-one".