5506551 has 6 divisors (see below), whose sum is σ = 7953920. Its totient is φ = 3671028.

The previous prime is 5506513. The next prime is 5506559. The reversal of 5506551 is 1556055.

5506551 is a `hidden beast` number, since 5 + 5 + 0 + 655 + 1 = 666.

It is not a de Polignac number, because 5506551 - 2¹⁰ = 5505527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5506559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305911 + ... + 305928.

Almost surely, 2^5506551 is an apocalyptic number.

5506551 is a deficient number, since it is larger than the sum of its proper divisors (2447369).

5506551 is a wasteful number, since it uses less digits than its factorization.

5506551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611845 (or 611842 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 5506551 is about 2346.6041421595. The cubic root of 5506551 is about 176.5874717232.

The spelling of 5506551 in words is "five million, five hundred six thousand, five hundred fifty-one".