425664622 has 4 divisors (see below), whose sum is σ = 638496936. Its totient is φ = 212832310.

The previous prime is 425664599. The next prime is 425664623. The reversal of 425664622 is 226466524.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425664623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106416154 + ... + 106416157.

It is an arithmetic number, because the mean of its divisors is an integer number (159624234).

Almost surely, 2^425664622 is an apocalyptic number.

425664622 is a deficient number, since it is larger than the sum of its proper divisors (212832314).

425664622 is a wasteful number, since it uses less digits than its factorization.

425664622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212832313.

The product of its digits is 138240, while the sum is 37.

The square root of 425664622 is about 20631.6412822635. The cubic root of 425664622 is about 752.2390110471.

The spelling of 425664622 in words is "four hundred twenty-five million, six hundred sixty-four thousand, six hundred twenty-two".