64545252 has 48 divisors (see below), whose sum is σ = 153216000. Its totient is φ = 21146400.

The previous prime is 64545227. The next prime is 64545287. The reversal of 64545252 is 25254546.

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, 324249 + ... + 324447.

It is an arithmetic number, because the mean of its divisors is an integer number (3192000).

Almost surely, 2^64545252 is an apocalyptic number.

It is an amenable number.

64545252 is an abundant number, since it is smaller than the sum of its proper divisors (88670748).

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

64545252 is a wasteful number, since it uses less digits than its factorization.

64545252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 64545252 is about 8034.0059746057. The cubic root of 64545252 is about 401.1327309403.

Adding to 64545252 its reverse (25254546), we get a palindrome (89799798).

The spelling of 64545252 in words is "sixty-four million, five hundred forty-five thousand, two hundred fifty-two".