52685645 has 8 divisors (see below), whose sum is σ = 63523680. Its totient is φ = 41947920.

The previous prime is 52685641. The next prime is 52685681. The reversal of 52685645 is 54658625.

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

It is not a de Polignac number, because 52685645 - 2² = 52685641 is a prime.

It is a super-3 number, since 3×52685645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52685641) 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, 23915 + ... + 26024.

It is an arithmetic number, because the mean of its divisors is an integer number (7940460).

Almost surely, 2^52685645 is an apocalyptic number.

It is an amenable number.

52685645 is a deficient number, since it is larger than the sum of its proper divisors (10838035).

52685645 is a wasteful number, since it uses less digits than its factorization.

52685645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50155.

The product of its digits is 288000, while the sum is 41.

The square root of 52685645 is about 7258.4877901668. The cubic root of 52685645 is about 374.8844562546.

The spelling of 52685645 in words is "fifty-two million, six hundred eighty-five thousand, six hundred forty-five".