64240503 has 8 divisors (see below), whose sum is σ = 87058416. Its totient is φ = 42124800.

The previous prime is 64240499. The next prime is 64240513. The reversal of 64240503 is 30504246.

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

It is not a de Polignac number, because 64240503 - 2² = 64240499 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64240513) 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 7 ways as a sum of consecutive naturals, for example, 175338 + ... + 175703.

It is an arithmetic number, because the mean of its divisors is an integer number (10882302).

Almost surely, 2^64240503 is an apocalyptic number.

64240503 is a deficient number, since it is larger than the sum of its proper divisors (22817913).

64240503 is a wasteful number, since it uses less digits than its factorization.

64240503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351105.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 64240503 is about 8015.0173424641. The cubic root of 64240503 is about 400.5004216011.

Adding to 64240503 its reverse (30504246), we get a palindrome (94744749).

The spelling of 64240503 in words is "sixty-four million, two hundred forty thousand, five hundred three".