63561136 has 20 divisors (see below), whose sum is σ = 123938992. Its totient is φ = 31576896.

The previous prime is 63561131. The next prime is 63561143. The reversal of 63561136 is 63116536.

It is a super-2 number, since 2×63561136² = 8080036019220992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63561098 and 63561107.

It is not an unprimeable number, because it can be changed into a prime (63561131) 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, 10140 + ... + 15163.

Almost surely, 2^63561136 is an apocalyptic number.

It is an amenable number.

63561136 is a deficient number, since it is larger than the sum of its proper divisors (60377856).

63561136 is a wasteful number, since it uses less digits than its factorization.

63561136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25468 (or 25462 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 63561136 is about 7972.5238162078. The cubic root of 63561136 is about 399.0836021407.

The spelling of 63561136 in words is "sixty-three million, five hundred sixty-one thousand, one hundred thirty-six".