6415564 has 6 divisors (see below), whose sum is σ = 11227244. Its totient is φ = 3207780.

The previous prime is 6415529. The next prime is 6415567. The reversal of 6415564 is 4655146.

It is a super-2 number, since 2×6415564² = 82318922876192, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6415567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801942 + ... + 801949.

Almost surely, 2^6415564 is an apocalyptic number.

It is an amenable number.

6415564 is a deficient number, since it is larger than the sum of its proper divisors (4811680).

6415564 is a wasteful number, since it uses less digits than its factorization.

6415564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603895 (or 1603893 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 6415564 is about 2532.8963658231. The cubic root of 6415564 is about 185.8139350251.

The spelling of 6415564 in words is "six million, four hundred fifteen thousand, five hundred sixty-four".