64514544 has 20 divisors (see below), whose sum is σ = 166662696. Its totient is φ = 21504832.

The previous prime is 64514543. The next prime is 64514561. The reversal of 64514544 is 44541546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64514543) 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, 671979 + ... + 672074.

Almost surely, 2^64514544 is an apocalyptic number.

It is an amenable number.

64514544 is an abundant number, since it is smaller than the sum of its proper divisors (102148152).

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

64514544 is a wasteful number, since it uses less digits than its factorization.

64514544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344064 (or 1344058 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 64514544 is about 8032.0946209566. The cubic root of 64514544 is about 401.0691066483.

The spelling of 64514544 in words is "sixty-four million, five hundred fourteen thousand, five hundred forty-four".