52280239 has 8 divisors (see below), whose sum is σ = 57138768. Its totient is φ = 47439360.

The previous prime is 52280231. The next prime is 52280257. The reversal of 52280239 is 93208225.

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 52280239 - 2³ = 52280231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52280239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52280231) 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, 2229 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (7142346).

Almost surely, 2^52280239 is an apocalyptic number.

52280239 is a deficient number, since it is larger than the sum of its proper divisors (4858529).

52280239 is a wasteful number, since it uses less digits than its factorization.

52280239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8825.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52280239 is about 7230.5075202229. The cubic root of 52280239 is about 373.9204245086.

The spelling of 52280239 in words is "fifty-two million, two hundred eighty thousand, two hundred thirty-nine".