18053953225 has 81 divisors (see below), whose sum is σ = 28706828661. Its totient is φ = 11222164800.

The previous prime is 18053953139. The next prime is 18053953249. The reversal of 18053953225 is 52235935081.

The square root of 18053953225 is 134365.

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 185749641 + 17868203584 = 13629^2 + 133672^2 .

It is not a de Polignac number, because 18053953225 - 2¹⁷ = 18053822153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 51730351 + ... + 51730699.

Almost surely, 2^18053953225 is an apocalyptic number.

18053953225 is the 134365-th square number.

18053953225 is the 67183-rd centered octagonal number.

It is an amenable number.

18053953225 is a deficient number, since it is larger than the sum of its proper divisors (10652875436).

18053953225 is an equidigital number, since it uses as much as digits as its factorization.

18053953225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 18053953225 in words is "eighteen billion, fifty-three million, nine hundred fifty-three thousand, two hundred twenty-five".