1809325425 has 24 divisors (see below), whose sum is σ = 2992697344. Its totient is φ = 964560960.

The previous prime is 1809325423. The next prime is 1809325433. The reversal of 1809325425 is 5245239081.

It is not a de Polignac number, because 1809325425 - 2¹ = 1809325423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1809325423) 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 23 ways as a sum of consecutive naturals, for example, 265359 + ... + 272091.

Almost surely, 2^1809325425 is an apocalyptic number.

1809325425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1809325425 is a deficient number, since it is larger than the sum of its proper divisors (1183371919).

1809325425 is a wasteful number, since it uses less digits than its factorization.

1809325425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10329 (or 10324 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1809325425 is about 42536.1660825232. The cubic root of 1809325425 is about 1218.5374898375.

The spelling of 1809325425 in words is "one billion, eight hundred nine million, three hundred twenty-five thousand, four hundred twenty-five".