64545300 has 108 divisors (see below), whose sum is σ = 209374620. Its totient is φ = 16611840.

The previous prime is 64545287. The next prime is 64545301. The reversal of 64545300 is 354546.

It can be written as a sum of positive squares in 6 ways, for example, as 144 + 64545156 = 12^2 + 8034^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64545301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24864 + ... + 27336.

Almost surely, 2^64545300 is an apocalyptic number.

64545300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64545300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104687310).

64545300 is an abundant number, since it is smaller than the sum of its proper divisors (144829320).

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

64545300 is a wasteful number, since it uses less digits than its factorization.

64545300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 64545300 is about 8034.0089619069. The cubic root of 64545300 is about 401.1328303763.

Adding to 64545300 its reverse (354546), we get a palindrome (64899846).

The spelling of 64545300 in words is "sixty-four million, five hundred forty-five thousand, three hundred".