634301825 has 6 divisors (see below), whose sum is σ = 786534294. Its totient is φ = 507441440.

The previous prime is 634301821. The next prime is 634301831. The reversal of 634301825 is 528103436.

634301825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 118336 + 634183489 = 344^2 + 25183^2 .

It is not a de Polignac number, because 634301825 - 2² = 634301821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634301791 and 634301800.

It is not an unprimeable number, because it can be changed into a prime (634301821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12686012 + ... + 12686061.

It is an arithmetic number, because the mean of its divisors is an integer number (131089049).

Almost surely, 2^634301825 is an apocalyptic number.

It is an amenable number.

634301825 is a deficient number, since it is larger than the sum of its proper divisors (152232469).

634301825 is a wasteful number, since it uses less digits than its factorization.

634301825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25372083 (or 25372078 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 634301825 is about 25185.3494119101. The cubic root of 634301825 is about 859.2086758226.

The spelling of 634301825 in words is "six hundred thirty-four million, three hundred one thousand, eight hundred twenty-five".