425765611 has 2 divisors, whose sum is σ = 425765612. Its totient is φ = 425765610.

The previous prime is 425765609. The next prime is 425765633. The reversal of 425765611 is 116567524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425765611 - 2¹ = 425765609 is a prime.

It is a super-4 number, since 4×425765611⁴ (a number of 36 digits) contains 4444 as substring.

Together with 425765609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (425765671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212882805 + 212882806.

It is an arithmetic number, because the mean of its divisors is an integer number (212882806).

Almost surely, 2^425765611 is an apocalyptic number.

425765611 is a deficient number, since it is larger than the sum of its proper divisors (1).

425765611 is an equidigital number, since it uses as much as digits as its factorization.

425765611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 425765611 is about 20634.0885672229. The cubic root of 425765611 is about 752.2984959518.

The spelling of 425765611 in words is "four hundred twenty-five million, seven hundred sixty-five thousand, six hundred eleven".