49967881 has 2 divisors, whose sum is σ = 49967882. Its totient is φ = 49967880.

The previous prime is 49967861. The next prime is 49967933. The reversal of 49967881 is 18876994.

It is a happy number.

It is an a-pointer prime, because the next prime (49967933) can be obtained adding 49967881 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44769481 + 5198400 = 6691^2 + 2280^2 .

It is a cyclic number.

It is not a de Polignac number, because 49967881 - 2¹¹ = 49965833 is a prime.

It is a super-2 number, since 2×49967881² = 4993578263260322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49967861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24983940 + 24983941.

It is an arithmetic number, because the mean of its divisors is an integer number (24983941).

Almost surely, 2^49967881 is an apocalyptic number.

It is an amenable number.

49967881 is a deficient number, since it is larger than the sum of its proper divisors (1).

49967881 is an equidigital number, since it uses as much as digits as its factorization.

49967881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 49967881 is about 7068.7962907414. The cubic root of 49967881 is about 368.3242480282.

The spelling of 49967881 in words is "forty-nine million, nine hundred sixty-seven thousand, eight hundred eighty-one".