635434425 has 72 divisors (see below), whose sum is σ = 1168764480. Its totient is φ = 329904000.

The previous prime is 635434379. The next prime is 635434447. The reversal of 635434425 is 524434536.

It is not a de Polignac number, because 635434425 - 2⁷ = 635434297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 635434425.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2004367 + ... + 2004683.

It is an arithmetic number, because the mean of its divisors is an integer number (16232840).

Almost surely, 2^635434425 is an apocalyptic number.

It is an amenable number.

635434425 is a deficient number, since it is larger than the sum of its proper divisors (533330055).

635434425 is a wasteful number, since it uses less digits than its factorization.

635434425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 535 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The square root of 635434425 is about 25207.8246780638. The cubic root of 635434425 is about 859.7197685305.

The spelling of 635434425 in words is "six hundred thirty-five million, four hundred thirty-four thousand, four hundred twenty-five".