52238537 has 4 divisors (see below), whose sum is σ = 56256900. Its totient is φ = 48220176.

The previous prime is 52238533. The next prime is 52238539. The reversal of 52238537 is 73583225.

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 18412681 + 33825856 = 4291^2 + 5816^2 .

It is a cyclic number.

It is not a de Polignac number, because 52238537 - 2² = 52238533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52238497 and 52238506.

It is not an unprimeable number, because it can be changed into a prime (52238533) 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, 2009162 + ... + 2009187.

It is an arithmetic number, because the mean of its divisors is an integer number (14064225).

Almost surely, 2^52238537 is an apocalyptic number.

It is an amenable number.

52238537 is a deficient number, since it is larger than the sum of its proper divisors (4018363).

52238537 is a wasteful number, since it uses less digits than its factorization.

52238537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018362.

The product of its digits is 50400, while the sum is 35.

The square root of 52238537 is about 7227.6231916170. The cubic root of 52238537 is about 373.8209772622.

The spelling of 52238537 in words is "fifty-two million, two hundred thirty-eight thousand, five hundred thirty-seven".