14547978225 has 243 divisors, whose sum is σ = 31149112449. Its totient is φ = 6484262400.

The previous prime is 14547978199. The next prime is 14547978227. The reversal of 14547978225 is 52287974541.

The square root of 14547978225 is 120615.

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

14547978225 is a `hidden beast` number, since 1 + 4 + 547 + 9 + 78 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 340291809 + 14207686416 = 18447^2 + 119196^2 .

It is not a de Polignac number, because 14547978225 - 2¹⁵ = 14547945457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14547978227) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 338325054 + ... + 338325096.

Almost surely, 2^14547978225 is an apocalyptic number.

14547978225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

14547978225 is the 120615-th square number.

14547978225 is the 60308-th centered octagonal number.

It is an amenable number.

14547978225 is an abundant number, since it is smaller than the sum of its proper divisors (16601134224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14547978225 is a wasteful number, since it uses less digits than its factorization.

14547978225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 79 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 14547978225 in words is "fourteen billion, five hundred forty-seven million, nine hundred seventy-eight thousand, two hundred twenty-five".