53281237 has 8 divisors (see below), whose sum is σ = 54232992. Its totient is φ = 52338000.

The previous prime is 53281223. The next prime is 53281279. The reversal of 53281237 is 73218235.

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 53281237 - 2¹¹ = 53279189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53281199 and 53281208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53281337) 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, 11218 + ... + 15244.

It is an arithmetic number, because the mean of its divisors is an integer number (6779124).

Almost surely, 2^53281237 is an apocalyptic number.

It is an amenable number.

53281237 is a deficient number, since it is larger than the sum of its proper divisors (951755).

53281237 is a wasteful number, since it uses less digits than its factorization.

53281237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259.

The product of its digits is 10080, while the sum is 31.

The square root of 53281237 is about 7299.3997698441. The cubic root of 53281237 is about 376.2918103079.

The spelling of 53281237 in words is "fifty-three million, two hundred eighty-one thousand, two hundred thirty-seven".