64515003 has 16 divisors (see below), whose sum is σ = 99922176. Its totient is φ = 36260640.

The previous prime is 64514993. The next prime is 64515019. The reversal of 64515003 is 30051546.

It is not a de Polignac number, because 64515003 - 2⁵ = 64514971 is a prime.

It is a super-2 number, since 2×64515003² = 8324371224180018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64515083) 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, 23901 + ... + 26462.

It is an arithmetic number, because the mean of its divisors is an integer number (6245136).

Almost surely, 2^64515003 is an apocalyptic number.

64515003 is a deficient number, since it is larger than the sum of its proper divisors (35407173).

64515003 is a wasteful number, since it uses less digits than its factorization.

64515003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50434.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 64515003 is about 8032.1231937764. The cubic root of 64515003 is about 401.0700578048.

Adding to 64515003 its reverse (30051546), we get a palindrome (94566549).

The spelling of 64515003 in words is "sixty-four million, five hundred fifteen thousand, three".