2405430725 has 12 divisors (see below), whose sum is σ = 3158189604. Its totient is φ = 1811147520.

The previous prime is 2405430701. The next prime is 2405430733. The reversal of 2405430725 is 5270345042.

It can be written as a sum of positive squares in 6 ways, for example, as 352162756 + 2053267969 = 18766^2 + 45313^2 .

It is not a de Polignac number, because 2405430725 - 2¹⁰ = 2405429701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2405430691 and 2405430700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2829494 + ... + 2830343.

It is an arithmetic number, because the mean of its divisors is an integer number (263182467).

Almost surely, 2^2405430725 is an apocalyptic number.

2405430725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2405430725 is a deficient number, since it is larger than the sum of its proper divisors (752758879).

2405430725 is a wasteful number, since it uses less digits than its factorization.

2405430725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659864 (or 5659859 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 2405430725 is about 49045.1906408773. The cubic root of 2405430725 is about 1339.8750022633.

Adding to 2405430725 its reverse (5270345042), we get a palindrome (7675775767).

The spelling of 2405430725 in words is "two billion, four hundred five million, four hundred thirty thousand, seven hundred twenty-five".