53418816 has 84 divisors (see below), whose sum is σ = 167054784. Its totient is φ = 16185600.

The previous prime is 53418809. The next prime is 53418821. The reversal of 53418816 is 61881435.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2121 + ... + 10551.

Almost surely, 2^53418816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53418816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83527392).

53418816 is an abundant number, since it is smaller than the sum of its proper divisors (113635968).

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

53418816 is a wasteful number, since it uses less digits than its factorization.

53418816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8460 (or 8447 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 53418816 is about 7308.8176882448. The cubic root of 53418816 is about 376.6154098769.

The spelling of 53418816 in words is "fifty-three million, four hundred eighteen thousand, eight hundred sixteen".