425421775 has 12 divisors (see below), whose sum is σ = 529218112. Its totient is φ = 339243840.

The previous prime is 425421767. The next prime is 425421779. The reversal of 425421775 is 577124524.

It is not a de Polignac number, because 425421775 - 2³ = 425421767 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425421779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19359 + ... + 35008.

Almost surely, 2^425421775 is an apocalyptic number.

425421775 is a deficient number, since it is larger than the sum of its proper divisors (103796337).

425421775 is a wasteful number, since it uses less digits than its factorization.

425421775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54690 (or 54685 counting only the distinct ones).

The product of its digits is 78400, while the sum is 37.

The square root of 425421775 is about 20625.7551376913. The cubic root of 425421775 is about 752.0959299069.

The spelling of 425421775 in words is "four hundred twenty-five million, four hundred twenty-one thousand, seven hundred seventy-five".