5251819 has 2 divisors, whose sum is σ = 5251820. Its totient is φ = 5251818.

The previous prime is 5251789. The next prime is 5251859. The reversal of 5251819 is 9181525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5251819 - 2⁵ = 5251787 is a prime.

It is a super-2 number, since 2×5251819² = 55163205617522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5251859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625909 + 2625910.

It is an arithmetic number, because the mean of its divisors is an integer number (2625910).

Almost surely, 2^5251819 is an apocalyptic number.

5251819 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251819 is an equidigital number, since it uses as much as digits as its factorization.

5251819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 31.

The square root of 5251819 is about 2291.6847514438. The cubic root of 5251819 is about 173.8214026010.

The spelling of 5251819 in words is "five million, two hundred fifty-one thousand, eight hundred nineteen".