13927540225 has 9 divisors (see below), whose sum is σ = 17270881603. Its totient is φ = 11141560120.

The previous prime is 13927540213. The next prime is 13927540229. The reversal of 13927540225 is 52204572931.

The square root of 13927540225 is 118015.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5013914481 + 8913625744 = 70809^2 + 94412^2 .

It is not a de Polignac number, because 13927540225 - 2⁹ = 13927539713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13927540229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 578274 + ... + 601876.

Almost surely, 2^13927540225 is an apocalyptic number.

13927540225 is the 118015-th square number.

13927540225 is the 59008-th centered octagonal number.

It is an amenable number.

13927540225 is a deficient number, since it is larger than the sum of its proper divisors (3343341378).

13927540225 is an frugal number, since it uses more digits than its factorization.

13927540225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47216 (or 23608 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 13927540225 in words is "thirteen billion, nine hundred twenty-seven million, five hundred forty thousand, two hundred twenty-five".