2182561825 has 24 divisors (see below), whose sum is σ = 2851702400. Its totient is φ = 1652477760.

The previous prime is 2182561819. The next prime is 2182561841. The reversal of 2182561825 is 5281652812.

It is not a de Polignac number, because 2182561825 - 2⁹ = 2182561313 is a prime.

It is a super-2 number, since 2×2182561825² = 9527152239894661250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 674311 + ... + 677539.

Almost surely, 2^2182561825 is an apocalyptic number.

2182561825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2182561825 is a deficient number, since it is larger than the sum of its proper divisors (669140575).

2182561825 is a wasteful number, since it uses less digits than its factorization.

2182561825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681 (or 4676 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 2182561825 is about 46717.8961962116. The cubic root of 2182561825 is about 1297.1459725649.

The spelling of 2182561825 in words is "two billion, one hundred eighty-two million, five hundred sixty-one thousand, eight hundred twenty-five".