2425858009 has 3 divisors (see below), whose sum is σ = 2425907263. Its totient is φ = 2425808756.

The previous prime is 2425857989. The next prime is 2425858021. The reversal of 2425858009 is 9008585242.

The square root of 2425858009 is 49253.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 288830025 + 2137027984 = 16995^2 + 46228^2 .

It is not a de Polignac number, because 2425858009 - 2⁷ = 2425857881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2425858069) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 24627 + ... + 73879.

Almost surely, 2^2425858009 is an apocalyptic number.

2425858009 is the 49253-rd square number.

2425858009 is the 24627-th centered octagonal number.

It is an amenable number.

2425858009 is a deficient number, since it is larger than the sum of its proper divisors (49254).

2425858009 is an frugal number, since it uses more digits than its factorization.

2425858009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98506 (or 49253 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The cubic root of 2425858009 is about 1343.6571237802.

Multiplying 2425858009 by its product of nonzero digits (230400), we get a square (558917685273600 = 23641440²).

The spelling of 2425858009 in words is "two billion, four hundred twenty-five million, eight hundred fifty-eight thousand, nine".