53553836 has 48 divisors (see below), whose sum is σ = 112069440. Its totient is φ = 21907200.

The previous prime is 53553817. The next prime is 53553847. The reversal of 53553836 is 63835535.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53553836.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81686 + ... + 82338.

It is an arithmetic number, because the mean of its divisors is an integer number (2334780).

Almost surely, 2^53553836 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 53553836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56034720).

53553836 is an abundant number, since it is smaller than the sum of its proper divisors (58515604).

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

53553836 is a wasteful number, since it uses less digits than its factorization.

53553836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 792 counting only the distinct ones).

The product of its digits is 162000, while the sum is 38.

The square root of 53553836 is about 7318.0486470097. The cubic root of 53553836 is about 376.9324506602.

The spelling of 53553836 in words is "fifty-three million, five hundred fifty-three thousand, eight hundred thirty-six".