63425297 has 4 divisors (see below), whose sum is σ = 68304180. Its totient is φ = 58546416.

The previous prime is 63425281. The next prime is 63425309. The reversal of 63425297 is 79252436.

It is a Cunningham number, because it is equal to 7964²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 54037201 = 3064^2 + 7351^2 .

It is a cyclic number.

It is not a de Polignac number, because 63425297 - 2⁴ = 63425281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63425297.

It is not an unprimeable number, because it can be changed into a prime (63425207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439422 + ... + 2439447.

It is an arithmetic number, because the mean of its divisors is an integer number (17076045).

Almost surely, 2^63425297 is an apocalyptic number.

It is an amenable number.

63425297 is a deficient number, since it is larger than the sum of its proper divisors (4878883).

63425297 is a wasteful number, since it uses less digits than its factorization.

63425297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878882.

The product of its digits is 90720, while the sum is 38.

The square root of 63425297 is about 7964.0000627825. Note that the first 4 decimals coincide. The cubic root of 63425297 is about 398.7991002912.

The spelling of 63425297 in words is "sixty-three million, four hundred twenty-five thousand, two hundred ninety-seven".