42553344 has 52 divisors (see below), whose sum is σ = 113494496. Its totient is φ = 14180352.

The previous prime is 42553339. The next prime is 42553349. The reversal of 42553344 is 44335524.

It is an interprime number because it is at equal distance from previous prime (42553339) and next prime (42553349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42553349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10557 + ... + 14019.

Almost surely, 2^42553344 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 42553344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56747248).

42553344 is an abundant number, since it is smaller than the sum of its proper divisors (70941152).

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

42553344 is an equidigital number, since it uses as much as digits as its factorization.

42553344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490 (or 3468 counting only the distinct ones).

The product of its digits is 28800, while the sum is 30.

The square root of 42553344 is about 6523.2924202430. The cubic root of 42553344 is about 349.1225476375.

Adding to 42553344 its reverse (44335524), we get a palindrome (86888868).

The spelling of 42553344 in words is "forty-two million, five hundred fifty-three thousand, three hundred forty-four".