2003198525 has 6 divisors (see below), whose sum is σ = 2483966202. Its totient is φ = 1602558800.

The previous prime is 2003198479. The next prime is 2003198539. The reversal of 2003198525 is 5258913002.

It can be written as a sum of positive squares in 3 ways, for example, as 994009 + 2002204516 = 997^2 + 44746^2 .

It is not a de Polignac number, because 2003198525 - 2¹² = 2003194429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40063946 + ... + 40063995.

It is an arithmetic number, because the mean of its divisors is an integer number (413994367).

Almost surely, 2^2003198525 is an apocalyptic number.

2003198525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2003198525 is a deficient number, since it is larger than the sum of its proper divisors (480767677).

2003198525 is an equidigital number, since it uses as much as digits as its factorization.

2003198525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80127951 (or 80127946 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2003198525 is about 44757.1058604106. The cubic root of 2003198525 is about 1260.5923403281.

The spelling of 2003198525 in words is "two billion, three million, one hundred ninety-eight thousand, five hundred twenty-five".