53288442 has 72 divisors (see below), whose sum is σ = 124705152. Its totient is φ = 17058600.

The previous prime is 53288413. The next prime is 53288491. The reversal of 53288442 is 24488235.

53288442 is a `hidden beast` number, since 532 + 8 + 84 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 53288397 and 53288406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 406717 + ... + 406847.

It is an arithmetic number, because the mean of its divisors is an integer number (1732016).

Almost surely, 2^53288442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53288442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62352576).

53288442 is an abundant number, since it is smaller than the sum of its proper divisors (71416710).

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

53288442 is an equidigital number, since it uses as much as digits as its factorization.

53288442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 167 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 53288442 is about 7299.8932868913. The cubic root of 53288442 is about 376.3087710021.

The spelling of 53288442 in words is "fifty-three million, two hundred eighty-eight thousand, four hundred forty-two".