15225054109 has 2 divisors, whose sum is σ = 15225054110. Its totient is φ = 15225054108.

The previous prime is 15225054107. The next prime is 15225054127. The reversal of 15225054109 is 90145052251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10687010884 + 4538043225 = 103378^2 + 67365^2 .

It is a cyclic number.

It is not a de Polignac number, because 15225054109 - 2¹ = 15225054107 is a prime.

Together with 15225054107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15225054107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7612527054 + 7612527055.

It is an arithmetic number, because the mean of its divisors is an integer number (7612527055).

Almost surely, 2^15225054109 is an apocalyptic number.

It is an amenable number.

15225054109 is a deficient number, since it is larger than the sum of its proper divisors (1).

15225054109 is an equidigital number, since it uses as much as digits as its factorization.

15225054109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 15225054109 in words is "fifteen billion, two hundred twenty-five million, fifty-four thousand, one hundred nine".