49963681 has 2 divisors, whose sum is σ = 49963682. Its totient is φ = 49963680.

The previous prime is 49963657. The next prime is 49963687. The reversal of 49963681 is 18636994.

49963681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27920656 + 22043025 = 5284^2 + 4695^2 .

It is a cyclic number.

It is not a de Polignac number, because 49963681 - 2⁷ = 49963553 is a prime.

It is a super-2 number, since 2×49963681² = 4992738838139522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49963687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24981840 + 24981841.

It is an arithmetic number, because the mean of its divisors is an integer number (24981841).

Almost surely, 2^49963681 is an apocalyptic number.

It is an amenable number.

49963681 is a deficient number, since it is larger than the sum of its proper divisors (1).

49963681 is an equidigital number, since it uses as much as digits as its factorization.

49963681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 49963681 is about 7068.4992042158. The cubic root of 49963681 is about 368.3139280309.

The spelling of 49963681 in words is "forty-nine million, nine hundred sixty-three thousand, six hundred eighty-one".