425301344150021 has 2 divisors, whose sum is σ = 425301344150022. Its totient is φ = 425301344150020.

The previous prime is 425301344149951. The next prime is 425301344150047. The reversal of 425301344150021 is 120051443103524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269932249048225 + 155369095101796 = 16429615^2 + 12464714^2 .

It is a cyclic number.

It is not a de Polignac number, because 425301344150021 - 2³⁰ = 425300270408197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425301344150071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212650672075010 + 212650672075011.

It is an arithmetic number, because the mean of its divisors is an integer number (212650672075011).

Almost surely, 2^{425301344150021} is an apocalyptic number.

It is an amenable number.

425301344150021 is a deficient number, since it is larger than the sum of its proper divisors (1).

425301344150021 is an equidigital number, since it uses as much as digits as its factorization.

425301344150021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 425301344150021 its reverse (120051443103524), we get a palindrome (545352787253545).

The spelling of 425301344150021 in words is "four hundred twenty-five trillion, three hundred one billion, three hundred forty-four million, one hundred fifty thousand, twenty-one".