52065646 has 4 divisors (see below), whose sum is σ = 78098472. Its totient is φ = 26032822.

The previous prime is 52065593. The next prime is 52065659. The reversal of 52065646 is 64656025.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13016410 + ... + 13016413.

It is an arithmetic number, because the mean of its divisors is an integer number (19524618).

Almost surely, 2^52065646 is an apocalyptic number.

52065646 is a deficient number, since it is larger than the sum of its proper divisors (26032826).

52065646 is a wasteful number, since it uses less digits than its factorization.

52065646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26032825.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 52065646 is about 7215.6528464166. The cubic root of 52065646 is about 373.4081165737.

It can be divided in two parts, 520 and 65646, that added together give a palindrome (66166).

The spelling of 52065646 in words is "fifty-two million, sixty-five thousand, six hundred forty-six".