53998784 has 84 divisors (see below), whose sum is σ = 127001016. Its totient is φ = 22708224.

The previous prime is 53998771. The next prime is 53998793. The reversal of 53998784 is 48789935.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 209984 + ... + 210240.

Almost surely, 2^53998784 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 53998784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63500508).

53998784 is an abundant number, since it is smaller than the sum of its proper divisors (73002232).

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

53998784 is a wasteful number, since it uses less digits than its factorization.

53998784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 333 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 53998784 is about 7348.3864895635. The cubic root of 53998784 is about 377.9734777916.

It can be divided in two parts, 5399878 and 4, that multiplied together give a palindrome (21599512).

The spelling of 53998784 in words is "fifty-three million, nine hundred ninety-eight thousand, seven hundred eighty-four".