1000042355225 has 24 divisors (see below), whose sum is σ = 1255309759200. Its totient is φ = 790195374720.

The previous prime is 1000042355149. The next prime is 1000042355239. The reversal of 1000042355225 is 5225532400001.

It is not a de Polignac number, because 1000042355225 - 2¹⁶ = 1000042289689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8446637 + ... + 8564213.

It is an arithmetic number, because the mean of its divisors is an integer number (52304573300).

Almost surely, 2^{1000042355225} is an apocalyptic number.

It is an amenable number.

1000042355225 is a deficient number, since it is larger than the sum of its proper divisors (255267403975).

1000042355225 is a wasteful number, since it uses less digits than its factorization.

1000042355225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121769 (or 121764 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 1000042355225 its reverse (5225532400001), we get a palindrome (6225574755226).

The spelling of 1000042355225 in words is "one trillion, forty-two million, three hundred fifty-five thousand, two hundred twenty-five".