63616253 has 4 divisors (see below), whose sum is σ = 63634428. Its totient is φ = 63598080.

The previous prime is 63616249. The next prime is 63616277. The reversal of 63616253 is 35261636.

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 10004569 + 53611684 = 3163^2 + 7322^2 .

It is a cyclic number.

It is not a de Polignac number, because 63616253 - 2² = 63616249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63616153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988 + ... + 11453.

It is an arithmetic number, because the mean of its divisors is an integer number (15908607).

Almost surely, 2^63616253 is an apocalyptic number.

It is an amenable number.

63616253 is a deficient number, since it is larger than the sum of its proper divisors (18175).

63616253 is a wasteful number, since it uses less digits than its factorization.

63616253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18174.

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

The square root of 63616253 is about 7975.9797517296. The cubic root of 63616253 is about 399.1989238468.

Adding to 63616253 its reverse (35261636), we get a palindrome (98877889).

The spelling of 63616253 in words is "sixty-three million, six hundred sixteen thousand, two hundred fifty-three".