499951451 has 2 divisors, whose sum is σ = 499951452. Its totient is φ = 499951450.

The previous prime is 499951423. The next prime is 499951469. The reversal of 499951451 is 154159994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499951451 - 2¹⁰ = 499950427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 499951396 and 499951405.

It is not a weakly prime, because it can be changed into another prime (499951051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249975725 + 249975726.

It is an arithmetic number, because the mean of its divisors is an integer number (249975726).

Almost surely, 2^499951451 is an apocalyptic number.

499951451 is a deficient number, since it is larger than the sum of its proper divisors (1).

499951451 is an equidigital number, since it uses as much as digits as its factorization.

499951451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 47.

The square root of 499951451 is about 22359.5941600021. The cubic root of 499951451 is about 793.6748362414.

The spelling of 499951451 in words is "four hundred ninety-nine million, nine hundred fifty-one thousand, four hundred fifty-one".