63890225 has 24 divisors (see below), whose sum is σ = 93470208. Its totient is φ = 42393600.

The previous prime is 63890213. The next prime is 63890261. The reversal of 63890225 is 52209836.

It is not a de Polignac number, because 63890225 - 2¹⁰ = 63889201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (3894592).

Almost surely, 2^63890225 is an apocalyptic number.

It is an amenable number.

63890225 is a deficient number, since it is larger than the sum of its proper divisors (29579983).

63890225 is a wasteful number, since it uses less digits than its factorization.

63890225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11825 (or 11820 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 63890225 is about 7993.1361179452. The cubic root of 63890225 is about 399.7711712017.

The spelling of 63890225 in words is "sixty-three million, eight hundred ninety thousand, two hundred twenty-five".