5009551 has 4 divisors (see below), whose sum is σ = 5025672. Its totient is φ = 4993432.

The previous prime is 5009549. The next prime is 5009573. The reversal of 5009551 is 1559005.

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 5009551 - 2¹ = 5009549 is a prime.

It is a Duffinian number.

5009551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5009581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7585 + ... + 8218.

It is an arithmetic number, because the mean of its divisors is an integer number (1256418).

Almost surely, 2^5009551 is an apocalyptic number.

5009551 is a deficient number, since it is larger than the sum of its proper divisors (16121).

5009551 is a wasteful number, since it uses less digits than its factorization.

5009551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16120.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 5009551 is about 2238.2026271095. The cubic root of 5009551 is about 171.1064052822.

The spelling of 5009551 in words is "five million, nine thousand, five hundred fifty-one".