53159816 has 24 divisors (see below), whose sum is σ = 105887370. Its totient is φ = 25015296.

The previous prime is 53159809. The next prime is 53159819. The reversal of 53159816 is 61895135.

It can be written as a sum of positive squares in 3 ways, for example, as 52852900 + 306916 = 7270^2 + 554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53159816.

It is not an unprimeable number, because it can be changed into a prime (53159819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9185 + ... + 13808.

Almost surely, 2^53159816 is an apocalyptic number.

It is an amenable number.

53159816 is a deficient number, since it is larger than the sum of its proper divisors (52727554).

53159816 is a wasteful number, since it uses less digits than its factorization.

53159816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033 (or 23012 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 53159816 is about 7291.0778352724. The cubic root of 53159816 is about 376.0057528922.

The spelling of 53159816 in words is "fifty-three million, one hundred fifty-nine thousand, eight hundred sixteen".