18210153025 has 27 divisors (see below), whose sum is σ = 22862665819. Its totient is φ = 14388375680.

The previous prime is 18210153011. The next prime is 18210153047. The reversal of 18210153025 is 52035101281.

The square root of 18210153025 is 134945.

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

It can be written as a sum of positive squares in 13 ways, for example, as 695218689 + 17514934336 = 26367^2 + 132344^2 .

It is not a de Polignac number, because 18210153025 - 2¹¹ = 18210150977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18210152984 and 18210153002.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 92437227 + ... + 92437423.

Almost surely, 2^18210153025 is an apocalyptic number.

18210153025 is the 134945-th square number.

18210153025 is the 67473-rd centered octagonal number.

It is an amenable number.

18210153025 is a deficient number, since it is larger than the sum of its proper divisors (4652512794).

18210153025 is an frugal number, since it uses more digits than its factorization.

18210153025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 18210153025 in words is "eighteen billion, two hundred ten million, one hundred fifty-three thousand, twenty-five".