11638425 has 24 divisors (see below), whose sum is σ = 19909440. Its totient is φ = 5992000.

The previous prime is 11638411. The next prime is 11638427. The reversal of 11638425 is 52483611.

11638425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11638425 - 2⁴ = 11638409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11638392 and 11638401.

It is not an unprimeable number, because it can be changed into a prime (11638427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501 + ... + 4850.

It is an arithmetic number, because the mean of its divisors is an integer number (829560).

Almost surely, 2^11638425 is an apocalyptic number.

11638425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11638425 is a deficient number, since it is larger than the sum of its proper divisors (8271015).

11638425 is a wasteful number, since it uses less digits than its factorization.

11638425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393 (or 5388 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 11638425 is about 3411.5135937000. The cubic root of 11638425 is about 226.6199141848.

The spelling of 11638425 in words is "eleven million, six hundred thirty-eight thousand, four hundred twenty-five".