11819825 has 6 divisors (see below), whose sum is σ = 14656614. Its totient is φ = 9455840.

The previous prime is 11819809. The next prime is 11819831. The reversal of 11819825 is 52891811.

11819825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1827904 + 9991921 = 1352^2 + 3161^2 .

It is not a de Polignac number, because 11819825 - 2⁴ = 11819809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 236372 + ... + 236421.

It is an arithmetic number, because the mean of its divisors is an integer number (2442769).

Almost surely, 2^11819825 is an apocalyptic number.

It is an amenable number.

11819825 is a deficient number, since it is larger than the sum of its proper divisors (2836789).

11819825 is an equidigital number, since it uses as much as digits as its factorization.

11819825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472803 (or 472798 counting only the distinct ones).

The product of its digits is 5760, while the sum is 35.

The square root of 11819825 is about 3437.9972367645. The cubic root of 11819825 is about 227.7912383259.

The spelling of 11819825 in words is "eleven million, eight hundred nineteen thousand, eight hundred twenty-five".