64541532 has 48 divisors (see below), whose sum is σ = 165779712. Its totient is φ = 19380480.

The previous prime is 64541509. The next prime is 64541549. The reversal of 64541532 is 23514546.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64541532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12753 + ... + 17079.

It is an arithmetic number, because the mean of its divisors is an integer number (3453744).

Almost surely, 2^64541532 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 64541532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82889856).

64541532 is an abundant number, since it is smaller than the sum of its proper divisors (101238180).

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

64541532 is a wasteful number, since it uses less digits than its factorization.

64541532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458 (or 4456 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 64541532 is about 8033.7744553852. The cubic root of 64541532 is about 401.1250244999.

The spelling of 64541532 in words is "sixty-four million, five hundred forty-one thousand, five hundred thirty-two".