425125663 has 2 divisors, whose sum is σ = 425125664. Its totient is φ = 425125662.

The previous prime is 425125637. The next prime is 425125691. The reversal of 425125663 is 366521524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425125663 - 2²⁵ = 391571231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425125693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212562831 + 212562832.

It is an arithmetic number, because the mean of its divisors is an integer number (212562832).

Almost surely, 2^425125663 is an apocalyptic number.

425125663 is a deficient number, since it is larger than the sum of its proper divisors (1).

425125663 is an equidigital number, since it uses as much as digits as its factorization.

425125663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 425125663 is about 20618.5756782567. The cubic root of 425125663 is about 751.9213922803.

The spelling of 425125663 in words is "four hundred twenty-five million, one hundred twenty-five thousand, six hundred sixty-three".