52666449 has 8 divisors (see below), whose sum is σ = 76605792. Its totient is φ = 31919040.

The previous prime is 52666433. The next prime is 52666463. The reversal of 52666449 is 94466625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52666449 - 2⁴ = 52666433 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 52666449.

It is not an unprimeable number, because it can be changed into a prime (52666469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797944 + ... + 798009.

It is an arithmetic number, because the mean of its divisors is an integer number (9575724).

Almost surely, 2^52666449 is an apocalyptic number.

It is an amenable number.

52666449 is a deficient number, since it is larger than the sum of its proper divisors (23939343).

52666449 is a wasteful number, since it uses less digits than its factorization.

52666449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595967.

The product of its digits is 311040, while the sum is 42.

The square root of 52666449 is about 7257.1653557019. The cubic root of 52666449 is about 374.8389210416.

The spelling of 52666449 in words is "fifty-two million, six hundred sixty-six thousand, four hundred forty-nine".