53137843 has 8 divisors (see below), whose sum is σ = 60489216. Its totient is φ = 46206600.

The previous prime is 53137841. The next prime is 53137873. The reversal of 53137843 is 34873135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53137843 - 2¹ = 53137841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53137799 and 53137808.

It is not an unprimeable number, because it can be changed into a prime (53137841) 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, 104763 + ... + 105268.

It is an arithmetic number, because the mean of its divisors is an integer number (7561152).

Almost surely, 2^53137843 is an apocalyptic number.

53137843 is a deficient number, since it is larger than the sum of its proper divisors (7351373).

53137843 is a wasteful number, since it uses less digits than its factorization.

53137843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210065.

The product of its digits is 30240, while the sum is 34.

The square root of 53137843 is about 7289.5708378477. The cubic root of 53137843 is about 375.9539398649.

The spelling of 53137843 in words is "fifty-three million, one hundred thirty-seven thousand, eight hundred forty-three".