425914081 has 2 divisors, whose sum is σ = 425914082. Its totient is φ = 425914080.

The previous prime is 425914079. The next prime is 425914091. The reversal of 425914081 is 180419524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300675600 + 125238481 = 17340^2 + 11191^2 .

It is a cyclic number.

It is not a de Polignac number, because 425914081 - 2¹ = 425914079 is a prime.

It is a super-2 number, since 2×425914081² = 362805608788149122, which contains 22 as substring.

Together with 425914079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (425914031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212957040 + 212957041.

It is an arithmetic number, because the mean of its divisors is an integer number (212957041).

Almost surely, 2^425914081 is an apocalyptic number.

It is an amenable number.

425914081 is a deficient number, since it is larger than the sum of its proper divisors (1).

425914081 is an equidigital number, since it uses as much as digits as its factorization.

425914081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 425914081 is about 20637.6859410158. The cubic root of 425914081 is about 752.3859312091.

The spelling of 425914081 in words is "four hundred twenty-five million, nine hundred fourteen thousand, eighty-one".