64563036 has 12 divisors (see below), whose sum is σ = 150647112. Its totient is φ = 21521008.

The previous prime is 64563017. The next prime is 64563061. The reversal of 64563036 is 63036546.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64562988 and 64563006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690115 + ... + 2690138.

It is an arithmetic number, because the mean of its divisors is an integer number (12553926).

Almost surely, 2^64563036 is an apocalyptic number.

It is an amenable number.

64563036 is an abundant number, since it is smaller than the sum of its proper divisors (86084076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64563036 is a wasteful number, since it uses less digits than its factorization.

64563036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5380260 (or 5380258 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 64563036 is about 8035.1126936714. The cubic root of 64563036 is about 401.1695686068.

The spelling of 64563036 in words is "sixty-four million, five hundred sixty-three thousand, thirty-six".