52392881 has 4 divisors (see below), whose sum is σ = 52409700. Its totient is φ = 52376064.

The previous prime is 52392859. The next prime is 52392887. The reversal of 52392881 is 18829325.

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 16200625 + 36192256 = 4025^2 + 6016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52392881 is a prime.

It is a super-2 number, since 2×52392881² = 5490027958960322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52392887) 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, 2216 + ... + 10473.

It is an arithmetic number, because the mean of its divisors is an integer number (13102425).

Almost surely, 2^52392881 is an apocalyptic number.

It is an amenable number.

52392881 is a deficient number, since it is larger than the sum of its proper divisors (16819).

52392881 is a wasteful number, since it uses less digits than its factorization.

52392881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16818.

The product of its digits is 34560, while the sum is 38.

The square root of 52392881 is about 7238.2926854335. The cubic root of 52392881 is about 374.1887791280.

The spelling of 52392881 in words is "fifty-two million, three hundred ninety-two thousand, eight hundred eighty-one".