2415218251 has 2 divisors, whose sum is σ = 2415218252. Its totient is φ = 2415218250.

The previous prime is 2415218233. The next prime is 2415218261. The reversal of 2415218251 is 1528125142.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2415218251 - 2²⁷ = 2281000523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2415218261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1207609125 + 1207609126.

It is an arithmetic number, because the mean of its divisors is an integer number (1207609126).

Almost surely, 2^2415218251 is an apocalyptic number.

2415218251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2415218251 is an equidigital number, since it uses as much as digits as its factorization.

2415218251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6400, while the sum is 31.

The square root of 2415218251 is about 49144.8700374719. The cubic root of 2415218251 is about 1341.6898282813.

The spelling of 2415218251 in words is "two billion, four hundred fifteen million, two hundred eighteen thousand, two hundred fifty-one".