15327678025 has 27 divisors (see below), whose sum is σ = 20900530119. Its totient is φ = 11142450000.

The previous prime is 15327678013. The next prime is 15327678031. The reversal of 15327678025 is 52087672351.

The square root of 15327678025 is 123805.

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

15327678025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5517964089 + 9809713936 = 74283^2 + 99044^2 .

It is not a de Polignac number, because 15327678025 - 2²³ = 15319289417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6808150 + ... + 6810400.

Almost surely, 2^15327678025 is an apocalyptic number.

15327678025 is the 123805-th square number.

15327678025 is the 61903-rd centered octagonal number.

It is an amenable number.

15327678025 is a deficient number, since it is larger than the sum of its proper divisors (5572852094).

15327678025 is an frugal number, since it uses more digits than its factorization.

15327678025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 15327678025 in words is "fifteen billion, three hundred twenty-seven million, six hundred seventy-eight thousand, twenty-five".