50251819 has 2 divisors, whose sum is σ = 50251820. Its totient is φ = 50251818.

The previous prime is 50251807. The next prime is 50251871. The reversal of 50251819 is 91815205.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50251819 - 2⁹ = 50251307 is a prime.

It is a super-2 number, since 2×50251819² = 5050490625617522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50251879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25125909 + 25125910.

It is an arithmetic number, because the mean of its divisors is an integer number (25125910).

Almost surely, 2^50251819 is an apocalyptic number.

50251819 is a deficient number, since it is larger than the sum of its proper divisors (1).

50251819 is an equidigital number, since it uses as much as digits as its factorization.

50251819 is an odious number, because the sum of its binary digits is odd.

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

The square root of 50251819 is about 7088.8517405854. The cubic root of 50251819 is about 369.0205872235.

The spelling of 50251819 in words is "fifty million, two hundred fifty-one thousand, eight hundred nineteen".