53003816 has 32 divisors (see below), whose sum is σ = 103761000. Its totient is φ = 25359360.

The previous prime is 53003803. The next prime is 53003879. The reversal of 53003816 is 61830035.

It can be written as a sum of positive squares in 4 ways, for example, as 26481316 + 26522500 = 5146^2 + 5150^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15860 + ... + 18908.

Almost surely, 2^53003816 is an apocalyptic number.

It is an amenable number.

53003816 is a deficient number, since it is larger than the sum of its proper divisors (50757184).

53003816 is a wasteful number, since it uses less digits than its factorization.

53003816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149 (or 3145 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 53003816 is about 7280.3719685192. The cubic root of 53003816 is about 375.6375902916.

The spelling of 53003816 in words is "fifty-three million, three thousand, eight hundred sixteen".