49769581 has 2 divisors, whose sum is σ = 49769582. Its totient is φ = 49769580.

The previous prime is 49769519. The next prime is 49769593. The reversal of 49769581 is 18596794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 67081 = 7050^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 49769581 - 2¹⁹ = 49245293 is a prime.

It is a super-2 number, since 2×49769581² = 4954022385831122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49769501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24884790 + 24884791.

It is an arithmetic number, because the mean of its divisors is an integer number (24884791).

Almost surely, 2^49769581 is an apocalyptic number.

It is an amenable number.

49769581 is a deficient number, since it is larger than the sum of its proper divisors (1).

49769581 is an equidigital number, since it uses as much as digits as its factorization.

49769581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 49769581 is about 7054.7559135664. The cubic root of 49769581 is about 367.8363644135.

The spelling of 49769581 in words is "forty-nine million, seven hundred sixty-nine thousand, five hundred eighty-one".