42550272 has 176 divisors, whose sum is σ = 134283200. Its totient is φ = 13436928.

The previous prime is 42550271. The next prime is 42550283. The reversal of 42550272 is 27205524.

42550272 is a `hidden beast` number, since 42 + 550 + 2 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42550271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2239479 + ... + 2239497.

Almost surely, 2^42550272 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 42550272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67141600).

42550272 is an abundant number, since it is smaller than the sum of its proper divisors (91732928).

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

42550272 is an frugal number, since it uses more digits than its factorization.

42550272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 42550272 is about 6523.0569520739. The cubic root of 42550272 is about 349.1141461805.

Adding to 42550272 its reverse (27205524), we get a palindrome (69755796).

The spelling of 42550272 in words is "forty-two million, five hundred fifty thousand, two hundred seventy-two".