5081551 has 8 divisors (see below), whose sum is σ = 5474304. Its totient is φ = 4703160.

The previous prime is 5081519. The next prime is 5081561. The reversal of 5081551 is 1551805.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5081551 - 2⁵ = 5081519 is a prime.

It is a Duffinian number.

5081551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5081561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851 + ... + 4276.

It is an arithmetic number, because the mean of its divisors is an integer number (684288).

Almost surely, 2^5081551 is an apocalyptic number.

5081551 is the 1426-th heptagonal number.

5081551 is a deficient number, since it is larger than the sum of its proper divisors (392753).

5081551 is a wasteful number, since it uses less digits than its factorization.

5081551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 5081551 is about 2254.2295801448. The cubic root of 5081551 is about 171.9222539383.

The spelling of 5081551 in words is "five million, eighty-one thousand, five hundred fifty-one".