64575452 has 48 divisors (see below), whose sum is σ = 127169280. Its totient is φ = 28512000.

The previous prime is 64575443. The next prime is 64575457. The reversal of 64575452 is 25457546.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64575457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194927 + ... + 195257.

It is an arithmetic number, because the mean of its divisors is an integer number (2649360).

Almost surely, 2^64575452 is an apocalyptic number.

It is an amenable number.

64575452 is a deficient number, since it is larger than the sum of its proper divisors (62593828).

64575452 is a wasteful number, since it uses less digits than its factorization.

64575452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 520 counting only the distinct ones).

The product of its digits is 168000, while the sum is 38.

The square root of 64575452 is about 8035.8852654826. The cubic root of 64575452 is about 401.1952830219.

The spelling of 64575452 in words is "sixty-four million, five hundred seventy-five thousand, four hundred fifty-two".