53933880 has 256 divisors, whose sum is σ = 217728000. Its totient is φ = 10321920.

The previous prime is 53933849. The next prime is 53933909. The reversal of 53933880 is 8833935.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119896 + ... + 120344.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^53933880 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 53933880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108864000).

53933880 is an abundant number, since it is smaller than the sum of its proper divisors (163794120).

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

53933880 is a wasteful number, since it uses less digits than its factorization.

53933880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 53933880 is about 7343.9689541827. The cubic root of 53933880 is about 377.8219816274.

The spelling of 53933880 in words is "fifty-three million, nine hundred thirty-three thousand, eight hundred eighty".