36553664 has 56 divisors (see below), whose sum is σ = 83637120. Its totient is φ = 15526656.

The previous prime is 36553637. The next prime is 36553679. The reversal of 36553664 is 46635563.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61979 + ... + 62565.

It is an arithmetic number, because the mean of its divisors is an integer number (1493520).

Almost surely, 2^36553664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36553664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41818560).

36553664 is an abundant number, since it is smaller than the sum of its proper divisors (47083456).

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

36553664 is a wasteful number, since it uses less digits than its factorization.

36553664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 735 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

The square root of 36553664 is about 6045.9626197984. The cubic root of 36553664 is about 331.8768595434.

The spelling of 36553664 in words is "thirty-six million, five hundred fifty-three thousand, six hundred sixty-four".