15425122019 has 2 divisors, whose sum is σ = 15425122020. Its totient is φ = 15425122018.

The previous prime is 15425122007. The next prime is 15425122021. The reversal of 15425122019 is 91022152451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15425122019 - 2⁴ = 15425122003 is a prime.

It is a super-2 number, since 2×15425122019² (a number of 21 digits) contains 22 as substring.

Together with 15425122021, 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 (15425122079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7712561009 + 7712561010.

It is an arithmetic number, because the mean of its divisors is an integer number (7712561010).

Almost surely, 2^15425122019 is an apocalyptic number.

15425122019 is a deficient number, since it is larger than the sum of its proper divisors (1).

15425122019 is an equidigital number, since it uses as much as digits as its factorization.

15425122019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 15425122019 in words is "fifteen billion, four hundred twenty-five million, one hundred twenty-two thousand, nineteen".