425771471 has 2 divisors, whose sum is σ = 425771472. Its totient is φ = 425771470.

The previous prime is 425771407. The next prime is 425771557. The reversal of 425771471 is 174177524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425771471 - 2⁶ = 425771407 is a prime.

It is a super-3 number, since 3×425771471³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425771371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212885735 + 212885736.

It is an arithmetic number, because the mean of its divisors is an integer number (212885736).

Almost surely, 2^425771471 is an apocalyptic number.

425771471 is a deficient number, since it is larger than the sum of its proper divisors (1).

425771471 is an equidigital number, since it uses as much as digits as its factorization.

425771471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54880, while the sum is 38.

The square root of 425771471 is about 20634.2305647679. The cubic root of 425771471 is about 752.3019473414.

The spelling of 425771471 in words is "four hundred twenty-five million, seven hundred seventy-one thousand, four hundred seventy-one".