42521205352 has 32 divisors (see below), whose sum is σ = 80998444800. Its totient is φ = 20922257664.

The previous prime is 42521205343. The next prime is 42521205367. The reversal of 42521205352 is 25350212524.

42521205352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501513 + ... + 580135.

It is an arithmetic number, because the mean of its divisors is an integer number (2531201400).

Almost surely, 2^42521205352 is an apocalyptic number.

It is an amenable number.

42521205352 is a deficient number, since it is larger than the sum of its proper divisors (38477239448).

42521205352 is a wasteful number, since it uses less digits than its factorization.

42521205352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79705 (or 79701 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 42521205352 its reverse (25350212524), we get a palindrome (67871417876).

The spelling of 42521205352 in words is "forty-two billion, five hundred twenty-one million, two hundred five thousand, three hundred fifty-two".