163252225 has 12 divisors (see below), whose sum is σ = 202604220. Its totient is φ = 130491200.

The previous prime is 163252151. The next prime is 163252273. The reversal of 163252225 is 522252361.

It can be written as a sum of positive squares in 6 ways, for example, as 1046529 + 162205696 = 1023^2 + 12736^2 .

It is not a de Polignac number, because 163252225 - 2⁷ = 163252097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163252193 and 163252202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40815 + ... + 44635.

It is an arithmetic number, because the mean of its divisors is an integer number (16883685).

Almost surely, 2^163252225 is an apocalyptic number.

It is an amenable number.

163252225 is a deficient number, since it is larger than the sum of its proper divisors (39351995).

163252225 is a wasteful number, since it uses less digits than its factorization.

163252225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540 (or 5535 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 163252225 is about 12777.0194098624. The cubic root of 163252225 is about 546.5371691991.

The spelling of 163252225 in words is "one hundred sixty-three million, two hundred fifty-two thousand, two hundred twenty-five".