49781759 has 2 divisors, whose sum is σ = 49781760. Its totient is φ = 49781758.

The previous prime is 49781747. The next prime is 49781773. The reversal of 49781759 is 95718794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49781759 - 2²⁰ = 48733183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49781779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24890879 + 24890880.

It is an arithmetic number, because the mean of its divisors is an integer number (24890880).

Almost surely, 2^49781759 is an apocalyptic number.

49781759 is a deficient number, since it is larger than the sum of its proper divisors (1).

49781759 is an equidigital number, since it uses as much as digits as its factorization.

49781759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 50.

The square root of 49781759 is about 7055.6189664692. The cubic root of 49781759 is about 367.8663636342.

The spelling of 49781759 in words is "forty-nine million, seven hundred eighty-one thousand, seven hundred fifty-nine".