6551427 has 4 divisors (see below), whose sum is σ = 8735240. Its totient is φ = 4367616.

The previous prime is 6551423. The next prime is 6551429. The reversal of 6551427 is 7241556.

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

It is not a de Polignac number, because 6551427 - 2² = 6551423 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6551394 and 6551403.

It is not an unprimeable number, because it can be changed into a prime (6551423) 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, 1091902 + ... + 1091907.

It is an arithmetic number, because the mean of its divisors is an integer number (2183810).

Almost surely, 2^6551427 is an apocalyptic number.

6551427 is a deficient number, since it is larger than the sum of its proper divisors (2183813).

6551427 is a wasteful number, since it uses less digits than its factorization.

6551427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183812.

The product of its digits is 8400, while the sum is 30.

The square root of 6551427 is about 2559.5755507506. The cubic root of 6551427 is about 187.1164497217.

The spelling of 6551427 in words is "six million, five hundred fifty-one thousand, four hundred twenty-seven".