5091251 has 4 divisors (see below), whose sum is σ = 5554104. Its totient is φ = 4628400.

The previous prime is 5091241. The next prime is 5091253. The reversal of 5091251 is 1521905.

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 5091251 - 2¹⁰ = 5090227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5091253) 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, 231410 + ... + 231431.

It is an arithmetic number, because the mean of its divisors is an integer number (1388526).

Almost surely, 2^5091251 is an apocalyptic number.

5091251 is a deficient number, since it is larger than the sum of its proper divisors (462853).

5091251 is a wasteful number, since it uses less digits than its factorization.

5091251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462852.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 5091251 is about 2256.3800655032. The cubic root of 5091251 is about 172.0315765895.

The spelling of 5091251 in words is "five million, ninety-one thousand, two hundred fifty-one".