49981873 has 2 divisors, whose sum is σ = 49981874. Its totient is φ = 49981872.

The previous prime is 49981861. The next prime is 49981879. The reversal of 49981873 is 37818994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49322529 + 659344 = 7023^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 49981873 - 2²¹ = 47884721 is a prime.

It is not a weakly prime, because it can be changed into another prime (49981879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24990936 + 24990937.

It is an arithmetic number, because the mean of its divisors is an integer number (24990937).

Almost surely, 2^49981873 is an apocalyptic number.

It is an amenable number.

49981873 is a deficient number, since it is larger than the sum of its proper divisors (1).

49981873 is an equidigital number, since it uses as much as digits as its factorization.

49981873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 49981873 is about 7069.7859232087. The cubic root of 49981873 is about 368.3586241902.

The spelling of 49981873 in words is "forty-nine million, nine hundred eighty-one thousand, eight hundred seventy-three".