63707425 has 6 divisors (see below), whose sum is σ = 78997238. Its totient is φ = 50965920.

The previous prime is 63707389. The next prime is 63707443. The reversal of 63707425 is 52470736.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8532241 + 55175184 = 2921^2 + 7428^2 .

It is not a de Polignac number, because 63707425 - 2⁷ = 63707297 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 (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1274124 + ... + 1274173.

Almost surely, 2^63707425 is an apocalyptic number.

It is an amenable number.

63707425 is a deficient number, since it is larger than the sum of its proper divisors (15289813).

63707425 is a wasteful number, since it uses less digits than its factorization.

63707425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548307 (or 2548302 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 63707425 is about 7981.6931161252. The cubic root of 63707425 is about 399.3895375630.

The spelling of 63707425 in words is "sixty-three million, seven hundred seven thousand, four hundred twenty-five".