42521074355 has 8 divisors (see below), whose sum is σ = 51238785600. Its totient is φ = 33874528576.

The previous prime is 42521074333. The next prime is 42521074397. The reversal of 42521074355 is 55347012524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42521074355 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 17790050 + ... + 17792439.

It is an arithmetic number, because the mean of its divisors is an integer number (6404848200).

Almost surely, 2^42521074355 is an apocalyptic number.

42521074355 is a deficient number, since it is larger than the sum of its proper divisors (8717711245).

42521074355 is a wasteful number, since it uses less digits than its factorization.

42521074355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35582733.

The product of its (nonzero) digits is 168000, while the sum is 38.

Adding to 42521074355 its reverse (55347012524), we get a palindrome (97868086879).

The spelling of 42521074355 in words is "forty-two billion, five hundred twenty-one million, seventy-four thousand, three hundred fifty-five".