425245603021 has 2 divisors, whose sum is σ = 425245603022. Its totient is φ = 425245603020.

The previous prime is 425245603019. The next prime is 425245603031. The reversal of 425245603021 is 120306542524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388222455625 + 37023147396 = 623075^2 + 192414^2 .

It is a cyclic number.

It is not a de Polignac number, because 425245603021 - 2¹ = 425245603019 is a prime.

Together with 425245603019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425245603031) 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, 212622801510 + 212622801511.

It is an arithmetic number, because the mean of its divisors is an integer number (212622801511).

Almost surely, 2^425245603021 is an apocalyptic number.

It is an amenable number.

425245603021 is a deficient number, since it is larger than the sum of its proper divisors (1).

425245603021 is an equidigital number, since it uses as much as digits as its factorization.

425245603021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 425245603021 in words is "four hundred twenty-five billion, two hundred forty-five million, six hundred three thousand, twenty-one".