64548500 has 24 divisors (see below), whose sum is σ = 140975016. Its totient is φ = 25819200.

The previous prime is 64548493. The next prime is 64548503. The reversal of 64548500 is 584546.

It can be written as a sum of positive squares in 4 ways, for example, as 6240004 + 58308496 = 2498^2 + 7636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64548503) 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, 64049 + ... + 65048.

It is an arithmetic number, because the mean of its divisors is an integer number (5873959).

Almost surely, 2^64548500 is an apocalyptic number.

It is an amenable number.

64548500 is an abundant number, since it is smaller than the sum of its proper divisors (76426516).

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

64548500 is a wasteful number, since it uses less digits than its factorization.

64548500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129116 (or 129104 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 64548500 is about 8034.2081128136. The cubic root of 64548500 is about 401.1394593322.

The spelling of 64548500 in words is "sixty-four million, five hundred forty-eight thousand, five hundred".