49961969 has 2 divisors, whose sum is σ = 49961970. Its totient is φ = 49961968.

The previous prime is 49961941. The next prime is 49961981. The reversal of 49961969 is 96916994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31360000 + 18601969 = 5600^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 49961969 - 2¹⁶ = 49896433 is a prime.

It is a super-2 number, since 2×49961969² = 4992396692713922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49961969.

It is not a weakly prime, because it can be changed into another prime (49961909) 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, 24980984 + 24980985.

It is an arithmetic number, because the mean of its divisors is an integer number (24980985).

Almost surely, 2^49961969 is an apocalyptic number.

It is an amenable number.

49961969 is a deficient number, since it is larger than the sum of its proper divisors (1).

49961969 is an equidigital number, since it uses as much as digits as its factorization.

49961969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 53.

The square root of 49961969 is about 7068.3781025070. The cubic root of 49961969 is about 368.3097212375.

The spelling of 49961969 in words is "forty-nine million, nine hundred sixty-one thousand, nine hundred sixty-nine".