425091281 has 2 divisors, whose sum is σ = 425091282. Its totient is φ = 425091280.

The previous prime is 425091259. The next prime is 425091301. The reversal of 425091281 is 182190524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338228881 + 86862400 = 18391^2 + 9320^2 .

It is a cyclic number.

It is not a de Polignac number, because 425091281 - 2¹⁸ = 424829137 is a prime.

It is a super-2 number, since 2×425091281² = 361405194364441922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425091181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212545640 + 212545641.

It is an arithmetic number, because the mean of its divisors is an integer number (212545641).

Almost surely, 2^425091281 is an apocalyptic number.

It is an amenable number.

425091281 is a deficient number, since it is larger than the sum of its proper divisors (1).

425091281 is an equidigital number, since it uses as much as digits as its factorization.

425091281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 425091281 is about 20617.7418986658. The cubic root of 425091281 is about 751.9011212087.

The spelling of 425091281 in words is "four hundred twenty-five million, ninety-one thousand, two hundred eighty-one".