203130025025 has 6 divisors (see below), whose sum is σ = 251881231062. Its totient is φ = 162504020000.

The previous prime is 203130024997. The next prime is 203130025027. The reversal of 203130025025 is 520520031302.

It can be written as a sum of positive squares in 3 ways, for example, as 59942708224 + 143187316801 = 244832^2 + 378401^2 .

It is not a de Polignac number, because 203130025025 - 2¹⁸ = 203129762881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203130025027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4062600476 + ... + 4062600525.

It is an arithmetic number, because the mean of its divisors is an integer number (41980205177).

Almost surely, 2^203130025025 is an apocalyptic number.

203130025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203130025025 is a deficient number, since it is larger than the sum of its proper divisors (48751206037).

203130025025 is an equidigital number, since it uses as much as digits as its factorization.

203130025025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8125201011 (or 8125201006 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 203130025025 its reverse (520520031302), we get a palindrome (723650056327).

The spelling of 203130025025 in words is "two hundred three billion, one hundred thirty million, twenty-five thousand, twenty-five".