425021719 has 2 divisors, whose sum is σ = 425021720. Its totient is φ = 425021718.

The previous prime is 425021689. The next prime is 425021741. The reversal of 425021719 is 917120524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425021719 - 2¹⁹ = 424497431 is a prime.

It is a super-2 number, since 2×425021719² = 361286923243429922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425021119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212510859 + 212510860.

It is an arithmetic number, because the mean of its divisors is an integer number (212510860).

Almost surely, 2^425021719 is an apocalyptic number.

425021719 is a deficient number, since it is larger than the sum of its proper divisors (1).

425021719 is an equidigital number, since it uses as much as digits as its factorization.

425021719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 425021719 is about 20616.0548844826. The cubic root of 425021719 is about 751.8601052345.

The spelling of 425021719 in words is "four hundred twenty-five million, twenty-one thousand, seven hundred nineteen".