42250512 has 20 divisors (see below), whose sum is σ = 109147280. Its totient is φ = 14083488.

The previous prime is 42250511. The next prime is 42250531. The reversal of 42250512 is 21505224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42250511) 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, 440062 + ... + 440157.

It is an arithmetic number, because the mean of its divisors is an integer number (5457364).

Almost surely, 2^42250512 is an apocalyptic number.

It is an amenable number.

42250512 is an abundant number, since it is smaller than the sum of its proper divisors (66896768).

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

42250512 is a wasteful number, since it uses less digits than its factorization.

42250512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880230 (or 880224 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 42250512 is about 6500.0393844961. The cubic root of 42250512 is about 348.2923952917.

Adding to 42250512 its reverse (21505224), we get a palindrome (63755736).

The spelling of 42250512 in words is "forty-two million, two hundred fifty thousand, five hundred twelve".