9155619225 has 27 divisors (see below), whose sum is σ = 16401302463. Its totient is φ = 4882231440.

The previous prime is 9155619181. The next prime is 9155619247. The reversal of 9155619225 is 5229165519.

The square root of 9155619225 is 95685.

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

9155619225 is a `hidden beast` number, since 9 + 1 + 5 + 5 + 619 + 2 + 25 = 666.

9155619225 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., 3296022921 + 5859596304 = 57411^2 + 76548^2 .

It is not a de Polignac number, because 9155619225 - 2¹³ = 9155611033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1432086 + ... + 1438464.

Almost surely, 2^9155619225 is an apocalyptic number.

9155619225 is the 95685-th square number.

9155619225 is the 47843-rd centered octagonal number.

It is an amenable number.

9155619225 is a deficient number, since it is larger than the sum of its proper divisors (7245683238).

9155619225 is an frugal number, since it uses more digits than its factorization.

9155619225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12774 (or 6387 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The cubic root of 9155619225 is about 2092.0043061311.

The spelling of 9155619225 in words is "nine billion, one hundred fifty-five million, six hundred nineteen thousand, two hundred twenty-five".