53142844 has 6 divisors (see below), whose sum is σ = 92999984. Its totient is φ = 26571420.

The previous prime is 53142839. The next prime is 53142851. The reversal of 53142844 is 44824135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6642852 + ... + 6642859.

Almost surely, 2^53142844 is an apocalyptic number.

It is an amenable number.

53142844 is a deficient number, since it is larger than the sum of its proper divisors (39857140).

53142844 is a wasteful number, since it uses less digits than its factorization.

53142844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13285715 (or 13285713 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 53142844 is about 7289.9138540863. The cubic root of 53142844 is about 375.9657336360.

Adding to 53142844 its reverse (44824135), we get a palindrome (97966979).

The spelling of 53142844 in words is "fifty-three million, one hundred forty-two thousand, eight hundred forty-four".