52237381 has 12 divisors (see below), whose sum is σ = 62863020. Its totient is φ = 43229760.

The previous prime is 52237373. The next prime is 52237399. The reversal of 52237381 is 18373225.

It can be written as a sum of positive squares in 2 ways, for example, as 9400356 + 42837025 = 3066^2 + 6545^2 .

It is not a de Polignac number, because 52237381 - 2³ = 52237373 is a prime.

It is a super-3 number, since 3×52237381³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52237331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16960 + ... + 19801.

It is an arithmetic number, because the mean of its divisors is an integer number (5238585).

Almost surely, 2^52237381 is an apocalyptic number.

It is an amenable number.

52237381 is a deficient number, since it is larger than the sum of its proper divisors (10625639).

52237381 is a wasteful number, since it uses less digits than its factorization.

52237381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36804 (or 36797 counting only the distinct ones).

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

The square root of 52237381 is about 7227.5432202098. The cubic root of 52237381 is about 373.8182197818.

The spelling of 52237381 in words is "fifty-two million, two hundred thirty-seven thousand, three hundred eighty-one".