9581473225 has 9 divisors (see below), whose sum is σ = 11881633717. Its totient is φ = 7664787040.

The previous prime is 9581473201. The next prime is 9581473247. The reversal of 9581473225 is 5223741859.

The square root of 9581473225 is 97885.

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 1552596409 + 8028876816 = 39403^2 + 89604^2 .

It is not a de Polignac number, because 9581473225 - 2⁹ = 9581472713 is a prime.

It is a super-2 number, since 2×9581473225² (a number of 21 digits) contains 22 as substring.

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, 479637 + ... + 499213.

Almost surely, 2^9581473225 is an apocalyptic number.

9581473225 is the 97885-th square number.

9581473225 is the 48943-rd centered octagonal number.

It is an amenable number.

9581473225 is a deficient number, since it is larger than the sum of its proper divisors (2300160492).

9581473225 is an frugal number, since it uses more digits than its factorization.

9581473225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39164 (or 19582 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The cubic root of 9581473225 is about 2123.9490609566.

The spelling of 9581473225 in words is "nine billion, five hundred eighty-one million, four hundred seventy-three thousand, two hundred twenty-five".