52305281 has 8 divisors (see below), whose sum is σ = 59854080. Its totient is φ = 44775648.

The previous prime is 52305259. The next prime is 52305293. The reversal of 52305281 is 18250325.

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 52305281 - 2¹⁴ = 52288897 is a prime.

It is a super-2 number, since 2×52305281² = 5471684840977922, which contains 22 as substring.

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 52305281.

It is not an unprimeable number, because it can be changed into a prime (52305221) 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, 1640 + ... + 10358.

It is an arithmetic number, because the mean of its divisors is an integer number (7481760).

Almost surely, 2^52305281 is an apocalyptic number.

It is an amenable number.

52305281 is a deficient number, since it is larger than the sum of its proper divisors (7548799).

52305281 is an equidigital number, since it uses as much as digits as its factorization.

52305281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 52305281 is about 7232.2390032410. The cubic root of 52305281 is about 373.9801170476.

The spelling of 52305281 in words is "fifty-two million, three hundred five thousand, two hundred eighty-one".