52666344 has 48 divisors (see below), whose sum is σ = 144127620. Its totient is φ = 17372160.

The previous prime is 52666333. The next prime is 52666379. The reversal of 52666344 is 44366625.

It can be written as a sum of positive squares in 2 ways, for example, as 49533444 + 3132900 = 7038^2 + 1770^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52666299 and 52666308.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3214 + ... + 10754.

Almost surely, 2^52666344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52666344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72063810).

52666344 is an abundant number, since it is smaller than the sum of its proper divisors (91461276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52666344 is a wasteful number, since it uses less digits than its factorization.

52666344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650 (or 7643 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 52666344 is about 7257.1581214688. The cubic root of 52666344 is about 374.8386719386.

The spelling of 52666344 in words is "fifty-two million, six hundred sixty-six thousand, three hundred forty-four".