52280069 has 8 divisors (see below), whose sum is σ = 54846720. Its totient is φ = 49764400.

The previous prime is 52280017. The next prime is 52280087. The reversal of 52280069 is 96008225.

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

It is a cyclic number.

It is not a de Polignac number, because 52280069 - 2²⁴ = 35502853 is a prime.

It is a super-2 number, since 2×52280069² = 5466411229289522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52280009) 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, 10637 + ... + 14754.

It is an arithmetic number, because the mean of its divisors is an integer number (6855840).

Almost surely, 2^52280069 is an apocalyptic number.

It is an amenable number.

52280069 is a deficient number, since it is larger than the sum of its proper divisors (2566651).

52280069 is a wasteful number, since it uses less digits than its factorization.

52280069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25491.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 52280069 is about 7230.4957644687. The cubic root of 52280069 is about 373.9200192150.

The spelling of 52280069 in words is "fifty-two million, two hundred eighty thousand, sixty-nine".