49311217 has 2 divisors, whose sum is σ = 49311218. Its totient is φ = 49311216.

The previous prime is 49311193. The next prime is 49311277. The reversal of 49311217 is 71211394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40335201 + 8976016 = 6351^2 + 2996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49311217 is a prime.

It is a super-2 number, since 2×49311217² = 4863192244042178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49311277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24655608 + 24655609.

It is an arithmetic number, because the mean of its divisors is an integer number (24655609).

Almost surely, 2^49311217 is an apocalyptic number.

It is an amenable number.

49311217 is a deficient number, since it is larger than the sum of its proper divisors (1).

49311217 is an equidigital number, since it uses as much as digits as its factorization.

49311217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 28.

The square root of 49311217 is about 7022.1945999808. The cubic root of 49311217 is about 366.7036564152.

The spelling of 49311217 in words is "forty-nine million, three hundred eleven thousand, two hundred seventeen".