63256247 has 4 divisors (see below), whose sum is σ = 63273000. Its totient is φ = 63239496.

The previous prime is 63256231. The next prime is 63256253. The reversal of 63256247 is 74265236.

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

It is a cyclic number.

It is not a de Polignac number, because 63256247 - 2⁴ = 63256231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63256217) 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, 248 + ... + 11250.

It is an arithmetic number, because the mean of its divisors is an integer number (15818250).

Almost surely, 2^63256247 is an apocalyptic number.

63256247 is a deficient number, since it is larger than the sum of its proper divisors (16753).

63256247 is a wasteful number, since it uses less digits than its factorization.

63256247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16752.

The product of its digits is 60480, while the sum is 35.

The square root of 63256247 is about 7953.3795961214. The cubic root of 63256247 is about 398.4444732661. Note that the first 4 decimals are identical.

The spelling of 63256247 in words is "sixty-three million, two hundred fifty-six thousand, two hundred forty-seven".