42550452 has 36 divisors (see below), whose sum is σ = 122924256. Its totient is φ = 12157200.

The previous prime is 42550451. The next prime is 42550493. The reversal of 42550452 is 25405524.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42550451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84174 + ... + 84677.

Almost surely, 2^42550452 is an apocalyptic number.

42550452 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42550452 is an abundant number, since it is smaller than the sum of its proper divisors (80373804).

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

42550452 is a wasteful number, since it uses less digits than its factorization.

42550452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168868 (or 168863 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 42550452 is about 6523.0707492714. The cubic root of 42550452 is about 349.1146384645.

Adding to 42550452 its reverse (25405524), we get a palindrome (67955976).

The spelling of 42550452 in words is "forty-two million, five hundred fifty thousand, four hundred fifty-two".