53117237 has 8 divisors (see below), whose sum is σ = 54799800. Its totient is φ = 51447744.

The previous prime is 53117227. The next prime is 53117257. The reversal of 53117237 is 73271135.

It can be written as a sum of positive squares in 4 ways, for example, as 26635921 + 26481316 = 5161^2 + 5146^2 .

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 53117237 - 2⁶ = 53117173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53117227) 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 7 ways as a sum of consecutive naturals, for example, 5339 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (6849975).

Almost surely, 2^53117237 is an apocalyptic number.

It is an amenable number.

53117237 is a deficient number, since it is larger than the sum of its proper divisors (1682563).

53117237 is a wasteful number, since it uses less digits than its factorization.

53117237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6535.

The product of its digits is 4410, while the sum is 29.

The square root of 53117237 is about 7288.1573116941. The cubic root of 53117237 is about 375.9053372869.

The spelling of 53117237 in words is "fifty-three million, one hundred seventeen thousand, two hundred thirty-seven".