52066646 has 8 divisors (see below), whose sum is σ = 78435864. Its totient is φ = 25921360.

The previous prime is 52066633. The next prime is 52066649. The reversal of 52066646 is 64666025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52066649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55400 + ... + 56331.

It is an arithmetic number, because the mean of its divisors is an integer number (9804483).

Almost surely, 2^52066646 is an apocalyptic number.

52066646 is a deficient number, since it is larger than the sum of its proper divisors (26369218).

52066646 is a wasteful number, since it uses less digits than its factorization.

52066646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111966.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 52066646 is about 7215.7221398832. The cubic root of 52066646 is about 373.4105071822.

The spelling of 52066646 in words is "fifty-two million, sixty-six thousand, six hundred forty-six".