5045551 has 4 divisors (see below), whose sum is σ = 5766352. Its totient is φ = 4324752.

The previous prime is 5045543. The next prime is 5045567. The reversal of 5045551 is 1555405.

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 5045551 - 2³ = 5045543 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 (5045531) 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, 360390 + ... + 360403.

It is an arithmetic number, because the mean of its divisors is an integer number (1441588).

Almost surely, 2^5045551 is an apocalyptic number.

5045551 is a deficient number, since it is larger than the sum of its proper divisors (720801).

5045551 is an equidigital number, since it uses as much as digits as its factorization.

5045551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720800.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 5045551 is about 2246.2303977998. The cubic root of 5045551 is about 171.5152997992.

The spelling of 5045551 in words is "five million, forty-five thousand, five hundred fifty-one".