52040237 has 4 divisors (see below), whose sum is σ = 54302880. Its totient is φ = 49777596.

The previous prime is 52040201. The next prime is 52040269. The reversal of 52040237 is 73204025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52040237 - 2¹⁸ = 51778093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2262619 = 52040237 / (5 + 2 + 0 + 4 + 0 + 2 + 3 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52040837) 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 3 ways as a sum of consecutive naturals, for example, 1131287 + ... + 1131332.

It is an arithmetic number, because the mean of its divisors is an integer number (13575720).

Almost surely, 2^52040237 is an apocalyptic number.

It is an amenable number.

52040237 is a deficient number, since it is larger than the sum of its proper divisors (2262643).

52040237 is a wasteful number, since it uses less digits than its factorization.

52040237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262642.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 52040237 is about 7213.8919454064. The cubic root of 52040237 is about 373.3473633297.

The spelling of 52040237 in words is "fifty-two million, forty thousand, two hundred thirty-seven".