64573033 has 6 divisors (see below), whose sum is σ = 75115626. Its totient is φ = 55348272.

The previous prime is 64572961. The next prime is 64573043. The reversal of 64573033 is 33037546.

It can be written as a sum of positive squares in only one way, i.e., 61027344 + 3545689 = 7812^2 + 1883^2 .

It is not a de Polignac number, because 64573033 - 2¹⁷ = 64441961 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 64572986 and 64573004.

It is not an unprimeable number, because it can be changed into a prime (64573043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658860 + ... + 658957.

It is an arithmetic number, because the mean of its divisors is an integer number (12519271).

Almost surely, 2^64573033 is an apocalyptic number.

It is an amenable number.

64573033 is a deficient number, since it is larger than the sum of its proper divisors (10542593).

64573033 is a wasteful number, since it uses less digits than its factorization.

64573033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317831 (or 1317824 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 31.

The square root of 64573033 is about 8035.7347517200. The cubic root of 64573033 is about 401.1902733602.

The spelling of 64573033 in words is "sixty-four million, five hundred seventy-three thousand, thirty-three".