5168621 has 2 divisors, whose sum is σ = 5168622. Its totient is φ = 5168620.

The previous prime is 5168573. The next prime is 5168623. The reversal of 5168621 is 1268615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4622500 + 546121 = 2150^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 5168621 - 2¹⁴ = 5152237 is a prime.

Together with 5168623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5168623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2584310 + 2584311.

It is an arithmetic number, because the mean of its divisors is an integer number (2584311).

Almost surely, 2^5168621 is an apocalyptic number.

It is an amenable number.

5168621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5168621 is an equidigital number, since it uses as much as digits as its factorization.

5168621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 5168621 is about 2273.4601382034. The cubic root of 5168621 is about 172.8986341932.

The spelling of 5168621 in words is "five million, one hundred sixty-eight thousand, six hundred twenty-one".