42521908301 has 4 divisors (see below), whose sum is σ = 42576918012. Its totient is φ = 42466898592.

The previous prime is 42521908267. The next prime is 42521908313. The reversal of 42521908301 is 10380912524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26017367401 + 16504540900 = 161299^2 + 128470^2 .

It is a cyclic number.

It is not a de Polignac number, because 42521908301 - 2¹⁴ = 42521891917 is a prime.

It is a super-2 number, since 2×42521908301² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42521902301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27503696 + ... + 27505241.

It is an arithmetic number, because the mean of its divisors is an integer number (10644229503).

Almost surely, 2^42521908301 is an apocalyptic number.

It is an amenable number.

42521908301 is a deficient number, since it is larger than the sum of its proper divisors (55009711).

42521908301 is an equidigital number, since it uses as much as digits as its factorization.

42521908301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55009710.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 42521908301 in words is "forty-two billion, five hundred twenty-one million, nine hundred eight thousand, three hundred one".