425254019 has 2 divisors, whose sum is σ = 425254020. Its totient is φ = 425254018.

The previous prime is 425253971. The next prime is 425254021. The reversal of 425254019 is 910452524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425254019 - 2²⁰ = 424205443 is a prime.

It is a super-2 number, since 2×425254019² = 361681961351304722, which contains 22 as substring.

Together with 425254021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425254079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212627009 + 212627010.

It is an arithmetic number, because the mean of its divisors is an integer number (212627010).

Almost surely, 2^425254019 is an apocalyptic number.

425254019 is a deficient number, since it is larger than the sum of its proper divisors (1).

425254019 is an equidigital number, since it uses as much as digits as its factorization.

425254019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 425254019 is about 20621.6880734822. The cubic root of 425254019 is about 751.9970592489.

The spelling of 425254019 in words is "four hundred twenty-five million, two hundred fifty-four thousand, nineteen".