49911217 has 2 divisors, whose sum is σ = 49911218. Its totient is φ = 49911216.

The previous prime is 49911161. The next prime is 49911223. The reversal of 49911217 is 71211994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45684081 + 4227136 = 6759^2 + 2056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49911217 is a prime.

It is a super-2 number, since 2×49911217² = 4982259164842178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49911287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24955608 + 24955609.

It is an arithmetic number, because the mean of its divisors is an integer number (24955609).

Almost surely, 2^49911217 is an apocalyptic number.

It is an amenable number.

49911217 is a deficient number, since it is larger than the sum of its proper divisors (1).

49911217 is an equidigital number, since it uses as much as digits as its factorization.

49911217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 34.

The square root of 49911217 is about 7064.7871163964. The cubic root of 49911217 is about 368.1849677616.

The spelling of 49911217 in words is "forty-nine million, nine hundred eleven thousand, two hundred seventeen".