63256613 has 8 divisors (see below), whose sum is σ = 73657728. Its totient is φ = 53196624.

The previous prime is 63256607. The next prime is 63256637. The reversal of 63256613 is 31665236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63256613 - 2⁴ = 63256597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63256613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63255613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84881 + ... + 85622.

It is an arithmetic number, because the mean of its divisors is an integer number (9207216).

Almost surely, 2^63256613 is an apocalyptic number.

It is an amenable number.

63256613 is a deficient number, since it is larger than the sum of its proper divisors (10401115).

63256613 is a wasteful number, since it uses less digits than its factorization.

63256613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170563.

The product of its digits is 19440, while the sum is 32.

The square root of 63256613 is about 7953.4026051747. The cubic root of 63256613 is about 398.4452417299.

The spelling of 63256613 in words is "sixty-three million, two hundred fifty-six thousand, six hundred thirteen".