425597807 has 2 divisors, whose sum is σ = 425597808. Its totient is φ = 425597806.

The previous prime is 425597759. The next prime is 425597813. The reversal of 425597807 is 708795524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425597807 - 2⁸ = 425597551 is a prime.

It is a super-2 number, since 2×425597807² = 362266986646418498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425597827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212798903 + 212798904.

It is an arithmetic number, because the mean of its divisors is an integer number (212798904).

Almost surely, 2^425597807 is an apocalyptic number.

425597807 is a deficient number, since it is larger than the sum of its proper divisors (1).

425597807 is an equidigital number, since it uses as much as digits as its factorization.

425597807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 425597807 is about 20630.0219825380. The cubic root of 425597807 is about 752.1996502632.

The spelling of 425597807 in words is "four hundred twenty-five million, five hundred ninety-seven thousand, eight hundred seven".