185425003897225 has 27 divisors (see below), whose sum is σ = 244249242578751. Its totient is φ = 139613249088000.

The previous prime is 185425003897193. The next prime is 185425003897247. The reversal of 185425003897225 is 522798300524581.

The square root of 185425003897225 is 13617085.

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

185425003897225 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 13 ways, for example, as 147495122589049 + 37929881308176 = 12144757^2 + 6158724^2 .

It is not a de Polignac number, because 185425003897225 - 2⁵ = 185425003897193 is a prime.

It is a Duffinian number.

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, 1157372125 + ... + 1157532325.

Almost surely, 2^{185425003897225} is an apocalyptic number.

185425003897225 is the 13617085-th square number.

185425003897225 is the 6808543-rd centered octagonal number.

It is an amenable number.

185425003897225 is a deficient number, since it is larger than the sum of its proper divisors (58824238681526).

185425003897225 is an frugal number, since it uses more digits than its factorization.

185425003897225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320446 (or 160223 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 185425003897225 in words is "one hundred eighty-five trillion, four hundred twenty-five billion, three million, eight hundred ninety-seven thousand, two hundred twenty-five".