3425201550521 has 2 divisors, whose sum is σ = 3425201550522. Its totient is φ = 3425201550520.

The previous prime is 3425201550509. The next prime is 3425201550557. The reversal of 3425201550521 is 1250551025243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3350232372496 + 74969178025 = 1830364^2 + 273805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3425201550521 is a prime.

It is not a weakly prime, because it can be changed into another prime (3425201570521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1712600775260 + 1712600775261.

It is an arithmetic number, because the mean of its divisors is an integer number (1712600775261).

Almost surely, 2^{3425201550521} is an apocalyptic number.

It is an amenable number.

3425201550521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3425201550521 is an equidigital number, since it uses as much as digits as its factorization.

3425201550521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 3425201550521 its reverse (1250551025243), we get a palindrome (4675752575764).

The spelling of 3425201550521 in words is "three trillion, four hundred twenty-five billion, two hundred one million, five hundred fifty thousand, five hundred twenty-one".