53329408 has 80 divisors (see below), whose sum is σ = 123300144. Its totient is φ = 22773760.

The previous prime is 53329403. The next prime is 53329421. The reversal of 53329408 is 80492335.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53329403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95466 + ... + 96022.

Almost surely, 2^53329408 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 53329408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61650072).

53329408 is an abundant number, since it is smaller than the sum of its proper divisors (69970736).

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

53329408 is a wasteful number, since it uses less digits than its factorization.

53329408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 53329408 is about 7302.6986792555. The cubic root of 53329408 is about 376.4051766256.

The spelling of 53329408 in words is "fifty-three million, three hundred twenty-nine thousand, four hundred eight".