5081261 has 4 divisors (see below), whose sum is σ = 5094912. Its totient is φ = 5067612.

The previous prime is 5081231. The next prime is 5081287. The reversal of 5081261 is 1621805.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1621805 = 5 ⋅324361.

It is a cyclic number.

It is not a de Polignac number, because 5081261 - 2¹⁰ = 5080237 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 (5081231) 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, 6251 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (1273728).

Almost surely, 2^5081261 is an apocalyptic number.

It is an amenable number.

5081261 is a deficient number, since it is larger than the sum of its proper divisors (13651).

5081261 is a wasteful number, since it uses less digits than its factorization.

5081261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13650.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 5081261 is about 2254.1652556989. The cubic root of 5081261 is about 171.9189833882.

The spelling of 5081261 in words is "five million, eighty-one thousand, two hundred sixty-one".