2115430725 has 24 divisors (see below), whose sum is σ = 3520693312. Its totient is φ = 1120752000.

The previous prime is 2115430699. The next prime is 2115430787. The reversal of 2115430725 is 5270345112.

It is not a de Polignac number, because 2115430725 - 2⁵ = 2115430693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2115430692 and 2115430701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82072 + ... + 104721.

Almost surely, 2^2115430725 is an apocalyptic number.

2115430725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2115430725 is a deficient number, since it is larger than the sum of its proper divisors (1405262587).

2115430725 is a wasteful number, since it uses less digits than its factorization.

2115430725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186957 (or 186952 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2115430725 is about 45993.8118120253. The cubic root of 2115430725 is about 1283.7080637666.

Adding to 2115430725 its reverse (5270345112), we get a palindrome (7385775837).

The spelling of 2115430725 in words is "two billion, one hundred fifteen million, four hundred thirty thousand, seven hundred twenty-five".