635494625 has 8 divisors (see below), whose sum is σ = 793097448. Its totient is φ = 508395600.

The previous prime is 635494609. The next prime is 635494633. The reversal of 635494625 is 526494536.

It can be written as a sum of positive squares in 4 ways, for example, as 253009 + 635241616 = 503^2 + 25204^2 .

It is not a de Polignac number, because 635494625 - 2⁴ = 635494609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2541854 + ... + 2542103.

It is an arithmetic number, because the mean of its divisors is an integer number (99137181).

Almost surely, 2^635494625 is an apocalyptic number.

It is an amenable number.

635494625 is a deficient number, since it is larger than the sum of its proper divisors (157602823).

635494625 is an equidigital number, since it uses as much as digits as its factorization.

635494625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083972 (or 5083962 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The square root of 635494625 is about 25209.0187234648. The cubic root of 635494625 is about 859.7469171466.

The spelling of 635494625 in words is "six hundred thirty-five million, four hundred ninety-four thousand, six hundred twenty-five".