63630513 has 6 divisors (see below), whose sum is σ = 91910754. Its totient is φ = 42420336.

The previous prime is 63630493. The next prime is 63630547. The reversal of 63630513 is 31503636.

It can be written as a sum of positive squares in only one way, i.e., 59721984 + 3908529 = 7728^2 + 1977^2 .

It is not a de Polignac number, because 63630513 - 2⁵ = 63630481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63630113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3535020 + ... + 3535037.

It is an arithmetic number, because the mean of its divisors is an integer number (15318459).

Almost surely, 2^63630513 is an apocalyptic number.

It is an amenable number.

63630513 is a deficient number, since it is larger than the sum of its proper divisors (28280241).

63630513 is a wasteful number, since it uses less digits than its factorization.

63630513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070063 (or 7070060 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 63630513 is about 7976.8736357047. The cubic root of 63630513 is about 399.2287493033.

The spelling of 63630513 in words is "sixty-three million, six hundred thirty thousand, five hundred thirteen".