52666368 has 56 divisors (see below), whose sum is σ = 140500608. Its totient is φ = 17547264.

The previous prime is 52666333. The next prime is 52666379. The reversal of 52666368 is 86366625.

It is a super-2 number, since 2×52666368² = 5547492636622848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23505 + ... + 25647.

Almost surely, 2^52666368 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 52666368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70250304).

52666368 is an abundant number, since it is smaller than the sum of its proper divisors (87834240).

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

52666368 is an equidigital number, since it uses as much as digits as its factorization.

52666368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2148 counting only the distinct ones).

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

The square root of 52666368 is about 7257.1597750084. The cubic root of 52666368 is about 374.8387288765.

The spelling of 52666368 in words is "fifty-two million, six hundred sixty-six thousand, three hundred sixty-eight".