42004442525 has 12 divisors (see below), whose sum is σ = 52088106624. Its totient is φ = 33601878000.

The previous prime is 42004442497. The next prime is 42004442563. The reversal of 42004442525 is 52524440024.

It is not a de Polignac number, because 42004442525 - 2⁸ = 42004442269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42004442491 and 42004442500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804980 + ... + 855570.

It is an arithmetic number, because the mean of its divisors is an integer number (4340675552).

Almost surely, 2^42004442525 is an apocalyptic number.

It is an amenable number.

42004442525 is a deficient number, since it is larger than the sum of its proper divisors (10083664099).

42004442525 is a wasteful number, since it uses less digits than its factorization.

42004442525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83812 (or 83807 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 42004442525 its reverse (52524440024), we get a palindrome (94528882549).

The spelling of 42004442525 in words is "forty-two billion, four million, four hundred forty-two thousand, five hundred twenty-five".