53543538 has 16 divisors (see below), whose sum is σ = 118985760. Its totient is φ = 17847828.

The previous prime is 53543533. The next prime is 53543569. The reversal of 53543538 is 83534535.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53543531) 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, 495720 + ... + 495827.

It is an arithmetic number, because the mean of its divisors is an integer number (7436610).

Almost surely, 2^53543538 is an apocalyptic number.

53543538 is an abundant number, since it is smaller than the sum of its proper divisors (65442222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53543538 is a wasteful number, since it uses less digits than its factorization.

53543538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991558 (or 991552 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 53543538 is about 7317.3450103162. The cubic root of 53543538 is about 376.9082886860.

The spelling of 53543538 in words is "fifty-three million, five hundred forty-three thousand, five hundred thirty-eight".