11861425 has 12 divisors (see below), whose sum is σ = 14752156. Its totient is φ = 9460800.

The previous prime is 11861413. The next prime is 11861429. The reversal of 11861425 is 52416811.

It can be written as a sum of positive squares in 6 ways, for example, as 289 + 11861136 = 17^2 + 3444^2 .

It is not a de Polignac number, because 11861425 - 2¹¹ = 11859377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11861393 and 11861402.

It is not an unprimeable number, because it can be changed into a prime (11861429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13087 + ... + 13963.

Almost surely, 2^11861425 is an apocalyptic number.

It is an amenable number.

11861425 is a deficient number, since it is larger than the sum of its proper divisors (2890731).

11861425 is an equidigital number, since it uses as much as digits as its factorization.

11861425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1423 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 11861425 is about 3444.0419567711. The cubic root of 11861425 is about 228.0581633185.

The spelling of 11861425 in words is "eleven million, eight hundred sixty-one thousand, four hundred twenty-five".