15609252227 has 2 divisors, whose sum is σ = 15609252228. Its totient is φ = 15609252226.

The previous prime is 15609252179. The next prime is 15609252259. The reversal of 15609252227 is 72225290651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15609252227 - 2⁶ = 15609252163 is a prime.

It is a super-2 number, since 2×15609252227² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15609258227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7804626113 + 7804626114.

It is an arithmetic number, because the mean of its divisors is an integer number (7804626114).

Almost surely, 2^15609252227 is an apocalyptic number.

15609252227 is a deficient number, since it is larger than the sum of its proper divisors (1).

15609252227 is an equidigital number, since it uses as much as digits as its factorization.

15609252227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 15609252227 in words is "fifteen billion, six hundred nine million, two hundred fifty-two thousand, two hundred twenty-seven".