52288669 has 4 divisors (see below), whose sum is σ = 52353180. Its totient is φ = 52224160.

The previous prime is 52288633. The next prime is 52288673. The reversal of 52288669 is 96688225.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21040569 + 31248100 = 4587^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 52288669 - 2¹¹ = 52286621 is a prime.

It is a super-3 number, since 3×52288669³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52288679) 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, 31024 + ... + 32665.

It is an arithmetic number, because the mean of its divisors is an integer number (13088295).

Almost surely, 2^52288669 is an apocalyptic number.

It is an amenable number.

52288669 is a deficient number, since it is larger than the sum of its proper divisors (64511).

52288669 is an equidigital number, since it uses as much as digits as its factorization.

52288669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64510.

The product of its digits is 414720, while the sum is 46.

The square root of 52288669 is about 7231.0904433564. The cubic root of 52288669 is about 373.9405212018.

The spelling of 52288669 in words is "fifty-two million, two hundred eighty-eight thousand, six hundred sixty-nine".