2499820051 has 2 divisors, whose sum is σ = 2499820052. Its totient is φ = 2499820050.

The previous prime is 2499820031. The next prime is 2499820069. The reversal of 2499820051 is 1500289942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2499820051 - 2⁵ = 2499820019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2499819986 and 2499820013.

It is not a weakly prime, because it can be changed into another prime (2499820031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249910025 + 1249910026.

It is an arithmetic number, because the mean of its divisors is an integer number (1249910026).

Almost surely, 2^2499820051 is an apocalyptic number.

2499820051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499820051 is an equidigital number, since it uses as much as digits as its factorization.

2499820051 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2499820051 is about 49998.2004776172. The cubic root of 2499820051 is about 1357.1762437337.

The spelling of 2499820051 in words is "two billion, four hundred ninety-nine million, eight hundred twenty thousand, fifty-one".