11643425 has 12 divisors (see below), whose sum is σ = 14602860. Its totient is φ = 9208320.

The previous prime is 11643421. The next prime is 11643431. The reversal of 11643425 is 52434611.

It can be written as a sum of positive squares in 6 ways, for example, as 1681 + 11641744 = 41^2 + 3412^2 .

It is not a de Polignac number, because 11643425 - 2² = 11643421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11643394 and 11643403.

It is not an unprimeable number, because it can be changed into a prime (11643421) 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, 392 + ... + 4841.

It is an arithmetic number, because the mean of its divisors is an integer number (1216905).

Almost surely, 2^11643425 is an apocalyptic number.

It is an amenable number.

11643425 is a deficient number, since it is larger than the sum of its proper divisors (2959435).

11643425 is an equidigital number, since it uses as much as digits as its factorization.

11643425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332 (or 5327 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 11643425 is about 3412.2463275678. The cubic root of 11643425 is about 226.6523623711.

The spelling of 11643425 in words is "eleven million, six hundred forty-three thousand, four hundred twenty-five".