42250 has 24 divisors (see below), whose sum is σ = 85644. Its totient is φ = 15600.

The previous prime is 42239. The next prime is 42257. The reversal of 42250 is 5224.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1849 + 40401 = 43^2 + 201^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a plaindrome in base 14.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 42250.

It is not an unprimeable number, because it can be changed into a prime (42257) 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, 3244 + ... + 3256.

2⁴²²⁵⁰ is an apocalyptic number.

42250 is an abundant number, since it is smaller than the sum of its proper divisors (43394).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42822).

42250 is a wasteful number, since it uses less digits than its factorization.

42250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 42250 is about 205.5480479109. The cubic root of 42250 is about 34.8290988394.

Adding to 42250 its reverse (5224), we get a palindrome (47474).

It can be divided in two parts, 42 and 250, that added together give a palindrome (292).

The spelling of 42250 in words is "forty-two thousand, two hundred fifty".