15225713 has 2 divisors, whose sum is σ = 15225714. Its totient is φ = 15225712.

The previous prime is 15225677. The next prime is 15225731. The reversal of 15225713 is 31752251.

15225713 is nontrivially palindromic in base 12.

15225713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (15225731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14807104 + 418609 = 3848^2 + 647^2 .

It is an emirp because it is prime and its reverse (31752251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15225713 - 2¹² = 15221617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15225773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7612856 + 7612857.

It is an arithmetic number, because the mean of its divisors is an integer number (7612857).

Almost surely, 2^15225713 is an apocalyptic number.

It is an amenable number.

15225713 is a deficient number, since it is larger than the sum of its proper divisors (1).

15225713 is an equidigital number, since it uses as much as digits as its factorization.

15225713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2100, while the sum is 26.

The square root of 15225713 is about 3902.0139671713. The cubic root of 15225713 is about 247.8520677331.

Adding to 15225713 its reverse (31752251), we get a palindrome (46977964).

The spelling of 15225713 in words is "fifteen million, two hundred twenty-five thousand, seven hundred thirteen".