64523536 has 80 divisors (see below), whose sum is σ = 157989888. Its totient is φ = 24796800.

The previous prime is 64523519. The next prime is 64523611. The reversal of 64523536 is 63532546.

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 15 ways as a sum of consecutive naturals, for example, 101941 + ... + 102571.

Almost surely, 2^64523536 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 64523536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78994944).

64523536 is an abundant number, since it is smaller than the sum of its proper divisors (93466352).

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

64523536 is a wasteful number, since it uses less digits than its factorization.

64523536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 734 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

The square root of 64523536 is about 8032.6543558154. The cubic root of 64523536 is about 401.0877393764.

The spelling of 64523536 in words is "sixty-four million, five hundred twenty-three thousand, five hundred thirty-six".