64512536 has 16 divisors (see below), whose sum is σ = 131957640. Its totient is φ = 29323840.

The previous prime is 64512523. The next prime is 64512551. The reversal of 64512536 is 63521546.

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 3 ways as a sum of consecutive naturals, for example, 366461 + ... + 366636.

Almost surely, 2^64512536 is an apocalyptic number.

It is an amenable number.

64512536 is an abundant number, since it is smaller than the sum of its proper divisors (67445104).

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

64512536 is a wasteful number, since it uses less digits than its factorization.

64512536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733114 (or 733110 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 64512536 is about 8031.9696214565. The cubic root of 64512536 is about 401.0649455446.

The spelling of 64512536 in words is "sixty-four million, five hundred twelve thousand, five hundred thirty-six".