42525221332405 has 48 divisors (see below), whose sum is σ = 60031565296560. Its totient is φ = 28831144624128.

The previous prime is 42525221332381. The next prime is 42525221332427. The reversal of 42525221332405 is 50423312252524.

It can be written as a sum of positive squares in 8 ways, for example, as 738900125649 + 41786321206756 = 859593^2 + 6464234^2 .

It is not a de Polignac number, because 42525221332405 - 2⁹ = 42525221331893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 713277157 + ... + 713336773.

It is an arithmetic number, because the mean of its divisors is an integer number (1250657610345).

Almost surely, 2^{42525221332405} is an apocalyptic number.

It is an amenable number.

42525221332405 is a deficient number, since it is larger than the sum of its proper divisors (17506343964155).

42525221332405 is a wasteful number, since it uses less digits than its factorization.

42525221332405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92438 (or 92431 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 42525221332405 its reverse (50423312252524), we get a palindrome (92948533584929).

The spelling of 42525221332405 in words is "forty-two trillion, five hundred twenty-five billion, two hundred twenty-one million, three hundred thirty-two thousand, four hundred five".