2115300025 has 6 divisors (see below), whose sum is σ = 2622972062. Its totient is φ = 1692240000.

The previous prime is 2115300007. The next prime is 2115300029. The reversal of 2115300025 is 5200035112.

It can be written as a sum of positive squares in 3 ways, for example, as 509134096 + 1606165929 = 22564^2 + 40077^2 .

It is not a de Polignac number, because 2115300025 - 2⁵ = 2115299993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2115299975 and 2115300011.

It is not an unprimeable number, because it can be changed into a prime (2115300029) 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, 42305976 + ... + 42306025.

Almost surely, 2^2115300025 is an apocalyptic number.

2115300025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2115300025 is a deficient number, since it is larger than the sum of its proper divisors (507672037).

2115300025 is an equidigital number, since it uses as much as digits as its factorization.

2115300025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84612011 (or 84612006 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 2115300025 is about 45992.3909467642. The cubic root of 2115300025 is about 1283.6816256363.

Adding to 2115300025 its reverse (5200035112), we get a palindrome (7315335137).

The spelling of 2115300025 in words is "two billion, one hundred fifteen million, three hundred thousand, twenty-five".