6544625332 has 48 divisors (see below), whose sum is σ = 13212194688. Its totient is φ = 2778572160.

The previous prime is 6544625317. The next prime is 6544625359. The reversal of 6544625332 is 2335264456.

It is a super-2 number, since 2×6544625332² = 85664241472512220448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775498 + ... + 2777854.

It is an arithmetic number, because the mean of its divisors is an integer number (275254056).

Almost surely, 2^6544625332 is an apocalyptic number.

It is an amenable number.

6544625332 is an abundant number, since it is smaller than the sum of its proper divisors (6667569356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6544625332 is a wasteful number, since it uses less digits than its factorization.

6544625332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256 (or 3254 counting only the distinct ones).

The product of its digits is 518400, while the sum is 40.

The square root of 6544625332 is about 80898.8586569675. The cubic root of 6544625332 is about 1870.5167275731.

Adding to 6544625332 its reverse (2335264456), we get a palindrome (8879889788).

The spelling of 6544625332 in words is "six billion, five hundred forty-four million, six hundred twenty-five thousand, three hundred thirty-two".