15627320768225 has 6 divisors (see below), whose sum is σ = 19377877752630. Its totient is φ = 12501856614560.

The previous prime is 15627320768209. The next prime is 15627320768243. The reversal of 15627320768225 is 52286702372651.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3494701225744 + 12132619542481 = 1869412^2 + 3483191^2 .

It is not a de Polignac number, because 15627320768225 - 2⁴ = 15627320768209 is a prime.

It is a super-3 number, since 3×15627320768225³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 312546415340 + ... + 312546415389.

It is an arithmetic number, because the mean of its divisors is an integer number (3229646292105).

Almost surely, 2^{15627320768225} is an apocalyptic number.

It is an amenable number.

15627320768225 is a deficient number, since it is larger than the sum of its proper divisors (3750556984405).

15627320768225 is an equidigital number, since it uses as much as digits as its factorization.

15627320768225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625092830739 (or 625092830734 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 15627320768225 in words is "fifteen trillion, six hundred twenty-seven billion, three hundred twenty million, seven hundred sixty-eight thousand, two hundred twenty-five".