15005255123 has 2 divisors, whose sum is σ = 15005255124. Its totient is φ = 15005255122.

The previous prime is 15005255117. The next prime is 15005255141. The reversal of 15005255123 is 32155250051.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15005255123 is a prime.

It is not a weakly prime, because it can be changed into another prime (15005255623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7502627561 + 7502627562.

It is an arithmetic number, because the mean of its divisors is an integer number (7502627562).

Almost surely, 2^15005255123 is an apocalyptic number.

15005255123 is a deficient number, since it is larger than the sum of its proper divisors (1).

15005255123 is an equidigital number, since it uses as much as digits as its factorization.

15005255123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 15005255123 in words is "fifteen billion, five million, two hundred fifty-five thousand, one hundred twenty-three".