64350550 has 48 divisors (see below), whose sum is σ = 136276992. Its totient is φ = 22378400.

The previous prime is 64350523. The next prime is 64350551. The reversal of 64350550 is 5505346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64350551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10107 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (2839104).

Almost surely, 2^64350550 is an apocalyptic number.

64350550 is an abundant number, since it is smaller than the sum of its proper divisors (71926442).

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

64350550 is a wasteful number, since it uses less digits than its factorization.

64350550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133 (or 5128 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 64350550 is about 8021.8794555889. The cubic root of 64350550 is about 400.7289831518.

Adding to 64350550 its reverse (5505346), we get a palindrome (69855896).

The spelling of 64350550 in words is "sixty-four million, three hundred fifty thousand, five hundred fifty".