64523030 has 32 divisors (see below), whose sum is σ = 136448928. Its totient is φ = 21657600.

The previous prime is 64523029. The next prime is 64523051. The reversal of 64523030 is 3032546.

64523030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64522987 and 64523005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21131 + ... + 23990.

It is an arithmetic number, because the mean of its divisors is an integer number (4264029).

Almost surely, 2^64523030 is an apocalyptic number.

64523030 is an abundant number, since it is smaller than the sum of its proper divisors (71925898).

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

64523030 is a wasteful number, since it uses less digits than its factorization.

64523030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45152.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 64523030 is about 8032.6228593156. The cubic root of 64523030 is about 401.0866909170.

Adding to 64523030 its reverse (3032546), we get a palindrome (67555576).

The spelling of 64523030 in words is "sixty-four million, five hundred twenty-three thousand, thirty".