42245336512625 has 16 divisors (see below), whose sum is σ = 52777502446032. Its totient is φ = 33760806083200.

The previous prime is 42245336512597. The next prime is 42245336512651. The reversal of 42245336512625 is 52621563354224.

It can be written as a sum of positive squares in 8 ways, for example, as 7509507161104 + 34735829351521 = 2740348^2 + 5893711^2 .

It is not a de Polignac number, because 42245336512625 - 2⁸ = 42245336512369 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 177196034 + ... + 177434283.

It is an arithmetic number, because the mean of its divisors is an integer number (3298593902877).

Almost surely, 2^{42245336512625} is an apocalyptic number.

It is an amenable number.

42245336512625 is a deficient number, since it is larger than the sum of its proper divisors (10532165933407).

42245336512625 is an equidigital number, since it uses as much as digits as its factorization.

42245336512625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354631285 (or 354631275 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 50.

Adding to 42245336512625 its reverse (52621563354224), we get a palindrome (94866899866849).

The spelling of 42245336512625 in words is "forty-two trillion, two hundred forty-five billion, three hundred thirty-six million, five hundred twelve thousand, six hundred twenty-five".