6607551 has 4 divisors (see below), whose sum is σ = 8810072. Its totient is φ = 4405032.

The previous prime is 6607537. The next prime is 6607567. The reversal of 6607551 is 1557066.

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

It is not a de Polignac number, because 6607551 - 2⁶ = 6607487 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6607501) 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, 1101256 + ... + 1101261.

It is an arithmetic number, because the mean of its divisors is an integer number (2202518).

Almost surely, 2^6607551 is an apocalyptic number.

6607551 is a deficient number, since it is larger than the sum of its proper divisors (2202521).

6607551 is a wasteful number, since it uses less digits than its factorization.

6607551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202520.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 6607551 is about 2570.5157070129. The cubic root of 6607551 is about 187.6492536042.

The spelling of 6607551 in words is "six million, six hundred seven thousand, five hundred fifty-one".