64645052 has 6 divisors (see below), whose sum is σ = 113128848. Its totient is φ = 32322524.

The previous prime is 64645043. The next prime is 64645081. The reversal of 64645052 is 25054646.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8080628 + ... + 8080635.

It is an arithmetic number, because the mean of its divisors is an integer number (18854808).

Almost surely, 2^64645052 is an apocalyptic number.

It is an amenable number.

64645052 is a deficient number, since it is larger than the sum of its proper divisors (48483796).

64645052 is a wasteful number, since it uses less digits than its factorization.

64645052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16161267 (or 16161265 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 64645052 is about 8040.2146737509. The cubic root of 64645052 is about 401.3393685574.

Adding to 64645052 its reverse (25054646), we get a palindrome (89699698).

The spelling of 64645052 in words is "sixty-four million, six hundred forty-five thousand, fifty-two".