42521000104 has 48 divisors (see below), whose sum is σ = 87863247360. Its totient is φ = 19277095200.

The previous prime is 42521000051. The next prime is 42521000111. The reversal of 42521000104 is 40100012524.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313399 + ... + 428089.

It is an arithmetic number, because the mean of its divisors is an integer number (1830484320).

Almost surely, 2^42521000104 is an apocalyptic number.

42521000104 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42521000104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43931623680).

42521000104 is an abundant number, since it is smaller than the sum of its proper divisors (45342247256).

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

42521000104 is a wasteful number, since it uses less digits than its factorization.

42521000104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115102 (or 115087 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 42521000104 its reverse (40100012524), we get a palindrome (82621012628).

The spelling of 42521000104 in words is "forty-two billion, five hundred twenty-one million, one hundred four", and thus it is an aban number.