15255366431 has 2 divisors, whose sum is σ = 15255366432. Its totient is φ = 15255366430.

The previous prime is 15255366349. The next prime is 15255366481. The reversal of 15255366431 is 13466355251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15255366431 - 2²² = 15251172127 is a prime.

It is a super-2 number, since 2×15255366431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15255366481) 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 as a sum of consecutive naturals, namely, 7627683215 + 7627683216.

It is an arithmetic number, because the mean of its divisors is an integer number (7627683216).

Almost surely, 2^15255366431 is an apocalyptic number.

15255366431 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255366431 is an equidigital number, since it uses as much as digits as its factorization.

15255366431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 41.

The spelling of 15255366431 in words is "fifteen billion, two hundred fifty-five million, three hundred sixty-six thousand, four hundred thirty-one".