64450532 has 12 divisors (see below), whose sum is σ = 114333996. Its totient is φ = 31783680.

The previous prime is 64450511. The next prime is 64450537. The reversal of 64450532 is 23505446.

It can be written as a sum of positive squares in 2 ways, for example, as 35117476 + 29333056 = 5926^2 + 5416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64450495 and 64450504.

It is not an unprimeable number, because it can be changed into a prime (64450537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110069 + ... + 110652.

It is an arithmetic number, because the mean of its divisors is an integer number (9527833).

Almost surely, 2^64450532 is an apocalyptic number.

It is an amenable number.

64450532 is a deficient number, since it is larger than the sum of its proper divisors (49883464).

64450532 is a wasteful number, since it uses less digits than its factorization.

64450532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220798 (or 220796 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 64450532 is about 8028.1088682205. The cubic root of 64450532 is about 400.9364144427.

Adding to 64450532 its reverse (23505446), we get a palindrome (87955978).

The spelling of 64450532 in words is "sixty-four million, four hundred fifty thousand, five hundred thirty-two".