53853816 has 16 divisors (see below), whose sum is σ = 134634600. Its totient is φ = 17951264.

The previous prime is 53853799. The next prime is 53853817. The reversal of 53853816 is 61835835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53853817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121931 + ... + 1121978.

Almost surely, 2^53853816 is an apocalyptic number.

It is an amenable number.

53853816 is an abundant number, since it is smaller than the sum of its proper divisors (80780784).

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

53853816 is a wasteful number, since it uses less digits than its factorization.

53853816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243918 (or 2243914 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 53853816 is about 7338.5159262619. The cubic root of 53853816 is about 377.6349321018.

The spelling of 53853816 in words is "fifty-three million, eight hundred fifty-three thousand, eight hundred sixteen".