425243477 has 2 divisors, whose sum is σ = 425243478. Its totient is φ = 425243476.

The previous prime is 425243459. The next prime is 425243537. The reversal of 425243477 is 774342524.

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., 422960356 + 2283121 = 20566^2 + 1511^2 .

It is a cyclic number.

It is not a de Polignac number, because 425243477 - 2²⁶ = 358134613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425243477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425243417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212621738 + 212621739.

It is an arithmetic number, because the mean of its divisors is an integer number (212621739).

Almost surely, 2^425243477 is an apocalyptic number.

It is an amenable number.

425243477 is a deficient number, since it is larger than the sum of its proper divisors (1).

425243477 is an equidigital number, since it uses as much as digits as its factorization.

425243477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 38.

The square root of 425243477 is about 20621.4324672172. The cubic root of 425243477 is about 751.9908452230.

The spelling of 425243477 in words is "four hundred twenty-five million, two hundred forty-three thousand, four hundred seventy-seven".