499220851 has 2 divisors, whose sum is σ = 499220852. Its totient is φ = 499220850.

The previous prime is 499220783. The next prime is 499220857. The reversal of 499220851 is 158022994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499220851 - 2⁷ = 499220723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499220857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249610425 + 249610426.

It is an arithmetic number, because the mean of its divisors is an integer number (249610426).

Almost surely, 2^499220851 is an apocalyptic number.

499220851 is a deficient number, since it is larger than the sum of its proper divisors (1).

499220851 is an equidigital number, since it uses as much as digits as its factorization.

499220851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 499220851 is about 22343.2506811341. The cubic root of 499220851 is about 793.2880376692.

The spelling of 499220851 in words is "four hundred ninety-nine million, two hundred twenty thousand, eight hundred fifty-one".