64550532 has 24 divisors (see below), whose sum is σ = 152028576. Its totient is φ = 21315328.

The previous prime is 64550531. The next prime is 64550557. The reversal of 64550532 is 23505546.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64550532.

It is not an unprimeable number, because it can be changed into a prime (64550531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23853 + ... + 26420.

It is an arithmetic number, because the mean of its divisors is an integer number (6334524).

Almost surely, 2^64550532 is an apocalyptic number.

It is an amenable number.

64550532 is an abundant number, since it is smaller than the sum of its proper divisors (87478044).

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

64550532 is a wasteful number, since it uses less digits than its factorization.

64550532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50387 (or 50385 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 64550532 is about 8034.3345710768. The cubic root of 64550532 is about 401.1436686055.

The spelling of 64550532 in words is "sixty-four million, five hundred fifty thousand, five hundred thirty-two".