52851281 has 8 divisors (see below), whose sum is σ = 62034240. Its totient is φ = 44076528.

The previous prime is 52851277. The next prime is 52851299. The reversal of 52851281 is 18215825.

It is a happy number.

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 52851281 - 2² = 52851277 is a prime.

It is a super-2 number, since 2×52851281² = 5586515806681922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52851221) 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, 101771 + ... + 102288.

It is an arithmetic number, because the mean of its divisors is an integer number (7754280).

Almost surely, 2^52851281 is an apocalyptic number.

It is an amenable number.

52851281 is a deficient number, since it is larger than the sum of its proper divisors (9182959).

52851281 is a wasteful number, since it uses less digits than its factorization.

52851281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204103.

The product of its digits is 6400, while the sum is 32.

The square root of 52851281 is about 7269.8886511418. Note that the first 3 decimals coincide. The cubic root of 52851281 is about 375.2769059964.

The spelling of 52851281 in words is "fifty-two million, eight hundred fifty-one thousand, two hundred eighty-one".