634500725 has 12 divisors (see below), whose sum is σ = 828191040. Its totient is φ = 480884400.

The previous prime is 634500719. The next prime is 634500731. The reversal of 634500725 is 527005436.

It is an interprime number because it is at equal distance from previous prime (634500719) and next prime (634500731).

It is not a de Polignac number, because 634500725 - 2⁶ = 634500661 is a prime.

It is a super-3 number, since 3×634500725³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 634500691 and 634500700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667421 + ... + 668370.

It is an arithmetic number, because the mean of its divisors is an integer number (69015920).

Almost surely, 2^634500725 is an apocalyptic number.

It is an amenable number.

634500725 is a deficient number, since it is larger than the sum of its proper divisors (193690315).

634500725 is a wasteful number, since it uses less digits than its factorization.

634500725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335820 (or 1335815 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 634500725 is about 25189.2978266565. The cubic root of 634500725 is about 859.2984746844.

The spelling of 634500725 in words is "six hundred thirty-four million, five hundred thousand, seven hundred twenty-five".