425524666 has 32 divisors (see below), whose sum is σ = 736947072. Its totient is φ = 180510720.

The previous prime is 425524661. The next prime is 425524669. The reversal of 425524666 is 666425524.

It is not an unprimeable number, because it can be changed into a prime (425524661) 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 15 ways as a sum of consecutive naturals, for example, 816486 + ... + 817006.

It is an arithmetic number, because the mean of its divisors is an integer number (23029596).

Almost surely, 2^425524666 is an apocalyptic number.

425524666 is a deficient number, since it is larger than the sum of its proper divisors (311422406).

425524666 is a wasteful number, since it uses less digits than its factorization.

425524666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its digits is 345600, while the sum is 40.

The square root of 425524666 is about 20628.2492228497. The cubic root of 425524666 is about 752.1565581031.

The spelling of 425524666 in words is "four hundred twenty-five million, five hundred twenty-four thousand, six hundred sixty-six".