11920825 has 24 divisors (see below), whose sum is σ = 17891712. Its totient is φ = 7691520.

The previous prime is 11920807. The next prime is 11920837. The reversal of 11920825 is 52802911.

It is not a de Polignac number, because 11920825 - 2⁹ = 11920313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11920793 and 11920802.

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, 972 + ... + 4978.

It is an arithmetic number, because the mean of its divisors is an integer number (745488).

Almost surely, 2^11920825 is an apocalyptic number.

It is an amenable number.

11920825 is a deficient number, since it is larger than the sum of its proper divisors (5970887).

11920825 is a wasteful number, since it uses less digits than its factorization.

11920825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11920825 is about 3452.6547756762. The cubic root of 11920825 is about 228.4382217710.

The spelling of 11920825 in words is "eleven million, nine hundred twenty thousand, eight hundred twenty-five".