64553332 has 6 divisors (see below), whose sum is σ = 112968338. Its totient is φ = 32276664.

The previous prime is 64553329. The next prime is 64553351. The reversal of 64553332 is 23335546.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62821476 + 1731856 = 7926^2 + 1316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64553294 and 64553303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069163 + ... + 8069170.

Almost surely, 2^64553332 is an apocalyptic number.

It is an amenable number.

64553332 is a deficient number, since it is larger than the sum of its proper divisors (48415006).

64553332 is a wasteful number, since it uses less digits than its factorization.

64553332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16138337 (or 16138335 counting only the distinct ones).

The product of its digits is 32400, while the sum is 31.

The square root of 64553332 is about 8034.5088213282. The cubic root of 64553332 is about 401.1494686405.

Adding to 64553332 its reverse (23335546), we get a palindrome (87888878).

The spelling of 64553332 in words is "sixty-four million, five hundred fifty-three thousand, three hundred thirty-two".