42521200441 has 2 divisors, whose sum is σ = 42521200442. Its totient is φ = 42521200440.

The previous prime is 42521200391. The next prime is 42521200451. The reversal of 42521200441 is 14400212524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42516378025 + 4822416 = 206195^2 + 2196^2 .

It is a cyclic number.

It is not a de Polignac number, because 42521200441 - 2³⁵ = 8161462073 is a prime.

It is not a weakly prime, because it can be changed into another prime (42521200451) by changing a digit.

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 as a sum of consecutive naturals, namely, 21260600220 + 21260600221.

It is an arithmetic number, because the mean of its divisors is an integer number (21260600221).

Almost surely, 2^42521200441 is an apocalyptic number.

It is an amenable number.

42521200441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42521200441 is an equidigital number, since it uses as much as digits as its factorization.

42521200441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 42521200441 its reverse (14400212524), we get a palindrome (56921412965).

The spelling of 42521200441 in words is "forty-two billion, five hundred twenty-one million, two hundred thousand, four hundred forty-one".