17472874225 has 9 divisors (see below), whose sum is σ = 21667183617. Its totient is φ = 13977770640.

The previous prime is 17472874171. The next prime is 17472874253. The reversal of 17472874225 is 52247827471.

The square root of 17472874225 is 132185.

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

It can be written as a sum of positive squares in 4 ways, for example, as 848382129 + 16624492096 = 29127^2 + 128936^2 .

It is not a de Polignac number, because 17472874225 - 2²⁷ = 17338656497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 647707 + ... + 674143.

Almost surely, 2^17472874225 is an apocalyptic number.

17472874225 is the 132185-th square number.

17472874225 is the 66093-rd centered octagonal number.

It is an amenable number.

17472874225 is a deficient number, since it is larger than the sum of its proper divisors (4194309392).

17472874225 is an frugal number, since it uses more digits than its factorization.

17472874225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52884 (or 26442 counting only the distinct ones).

The product of its digits is 1756160, while the sum is 49.

Multiplying 17472874225 by its sum of digits (49), we get a square (856170837025 = 925295²).

The spelling of 17472874225 in words is "seventeen billion, four hundred seventy-two million, eight hundred seventy-four thousand, two hundred twenty-five".