64353523 has 16 divisors (see below), whose sum is σ = 72122400. Its totient is φ = 57012480.

The previous prime is 64353503. The next prime is 64353529. The reversal of 64353523 is 32535346.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64353523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64353529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79143 + ... + 79951.

It is an arithmetic number, because the mean of its divisors is an integer number (4507650).

Almost surely, 2^64353523 is an apocalyptic number.

64353523 is a deficient number, since it is larger than the sum of its proper divisors (7768877).

64353523 is a wasteful number, since it uses less digits than its factorization.

64353523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

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

The square root of 64353523 is about 8022.0647591502. The cubic root of 64353523 is about 400.7351542927.

Adding to 64353523 its reverse (32535346), we get a palindrome (96888869).

The spelling of 64353523 in words is "sixty-four million, three hundred fifty-three thousand, five hundred twenty-three".