64752445 has 8 divisors (see below), whose sum is σ = 77761080. Its totient is φ = 51763200.

The previous prime is 64752433. The next prime is 64752449. The reversal of 64752445 is 54425746.

It can be written as a sum of positive squares in 4 ways, for example, as 7689529 + 57062916 = 2773^2 + 7554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64752445 - 2²³ = 56363837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64752449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3961 + ... + 12049.

It is an arithmetic number, because the mean of its divisors is an integer number (9720135).

Almost surely, 2^64752445 is an apocalyptic number.

It is an amenable number.

64752445 is a deficient number, since it is larger than the sum of its proper divisors (13008635).

64752445 is a wasteful number, since it uses less digits than its factorization.

64752445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9695.

The product of its digits is 134400, while the sum is 37.

The square root of 64752445 is about 8046.8903931892. The cubic root of 64752445 is about 401.5614901891.

The spelling of 64752445 in words is "sixty-four million, seven hundred fifty-two thousand, four hundred forty-five".