42525122220 has 144 divisors (see below), whose sum is σ = 147681101568. Its totient is φ = 9702840960.

The previous prime is 42525122201. The next prime is 42525122221. The reversal of 42525122220 is 2222152524.

It is a happy number.

42525122220 is a `hidden beast` number, since 425 + 2 + 5 + 12 + 2 + 220 = 666.

It is not an unprimeable number, because it can be changed into a prime (42525122221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 689907 + ... + 749013.

Almost surely, 2^42525122220 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 42525122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73840550784).

42525122220 is an abundant number, since it is smaller than the sum of its proper divisors (105155979348).

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

42525122220 is a wasteful number, since it uses less digits than its factorization.

42525122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59700 (or 59695 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 42525122220 its reverse (2222152524), we get a palindrome (44747274744).

The spelling of 42525122220 in words is "forty-two billion, five hundred twenty-five million, one hundred twenty-two thousand, two hundred twenty".