11664425 has 12 divisors (see below), whose sum is σ = 14595420. Its totient is φ = 9246720.

The previous prime is 11664421. The next prime is 11664437. The reversal of 11664425 is 52446611.

It can be written as a sum of positive squares in 6 ways, for example, as 2128681 + 9535744 = 1459^2 + 3088^2 .

It is not a de Polignac number, because 11664425 - 2² = 11664421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11664421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 761 + ... + 4889.

It is an arithmetic number, because the mean of its divisors is an integer number (1216285).

Almost surely, 2^11664425 is an apocalyptic number.

It is an amenable number.

11664425 is a deficient number, since it is larger than the sum of its proper divisors (2930995).

11664425 is a wasteful number, since it uses less digits than its factorization.

11664425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252 (or 4247 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 11664425 is about 3415.3220931561. The cubic root of 11664425 is about 226.7885434047.

The spelling of 11664425 in words is "eleven million, six hundred sixty-four thousand, four hundred twenty-five".