53355432 has 128 divisors (see below), whose sum is σ = 152127360. Its totient is φ = 15482880.

The previous prime is 53355431. The next prime is 53355451. The reversal of 53355432 is 23455335.

It is a self number, because there is not a number n which added to its sum of digits gives 53355432.

It is not an unprimeable number, because it can be changed into a prime (53355431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550008 + ... + 550104.

It is an arithmetic number, because the mean of its divisors is an integer number (1188495).

Almost surely, 2^53355432 is an apocalyptic number.

53355432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53355432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76063680).

53355432 is an abundant number, since it is smaller than the sum of its proper divisors (98771928).

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

53355432 is a wasteful number, since it uses less digits than its factorization.

53355432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 199 counting only the distinct ones).

The product of its digits is 27000, while the sum is 30.

The square root of 53355432 is about 7304.4802689856. The cubic root of 53355432 is about 376.4663934773.

The spelling of 53355432 in words is "fifty-three million, three hundred fifty-five thousand, four hundred thirty-two".