42225510 has 64 divisors (see below), whose sum is σ = 105336000. Its totient is φ = 10824192.

The previous prime is 42225461. The next prime is 42225511. The reversal of 42225510 is 1552224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42225511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120816 + ... + 121164.

It is an arithmetic number, because the mean of its divisors is an integer number (1645875).

Almost surely, 2^42225510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42225510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52668000).

42225510 is an abundant number, since it is smaller than the sum of its proper divisors (63110490).

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

42225510 is a wasteful number, since it uses less digits than its factorization.

42225510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

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

The square root of 42225510 is about 6498.1158807765. The cubic root of 42225510 is about 348.2236803476.

Adding to 42225510 its reverse (1552224), we get a palindrome (43777734).

The spelling of 42225510 in words is "forty-two million, two hundred twenty-five thousand, five hundred ten".