5187251 has 4 divisors (see below), whose sum is σ = 5249832. Its totient is φ = 5124672.

The previous prime is 5187239. The next prime is 5187271. The reversal of 5187251 is 1527815.

5187251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1527815 = 5 ⋅305563.

It is a cyclic number.

It is not a de Polignac number, because 5187251 - 2²² = 992947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5187271) 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 3 ways as a sum of consecutive naturals, for example, 31166 + ... + 31331.

It is an arithmetic number, because the mean of its divisors is an integer number (1312458).

Almost surely, 2^5187251 is an apocalyptic number.

5187251 is a deficient number, since it is larger than the sum of its proper divisors (62581).

5187251 is an equidigital number, since it uses as much as digits as its factorization.

5187251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62580.

The product of its digits is 2800, while the sum is 29.

The square root of 5187251 is about 2277.5537315286. The cubic root of 5187251 is about 173.1061195291.

The spelling of 5187251 in words is "five million, one hundred eighty-seven thousand, two hundred fifty-one".