6551039 has 4 divisors (see below), whose sum is σ = 7146600. Its totient is φ = 5955480.

The previous prime is 6551011. The next prime is 6551047. The reversal of 6551039 is 9301556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6551039 - 2⁸ = 6550783 is a prime.

It is a super-2 number, since 2×6551039² = 85832223959042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297764 + ... + 297785.

It is an arithmetic number, because the mean of its divisors is an integer number (1786650).

Almost surely, 2^6551039 is an apocalyptic number.

6551039 is a deficient number, since it is larger than the sum of its proper divisors (595561).

6551039 is a wasteful number, since it uses less digits than its factorization.

6551039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595560.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 6551039 is about 2559.4997558117. The cubic root of 6551039 is about 187.1127557369.

The spelling of 6551039 in words is "six million, five hundred fifty-one thousand, thirty-nine".