49988669 has 2 divisors, whose sum is σ = 49988670. Its totient is φ = 49988668.

The previous prime is 49988657. The next prime is 49988671. The reversal of 49988669 is 96688994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27426169 + 22562500 = 5237^2 + 4750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49988669 is a prime.

It is a super-2 number, since 2×49988669² = 4997734056783122, which contains 22 as substring.

Together with 49988671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49988569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24994334 + 24994335.

It is an arithmetic number, because the mean of its divisors is an integer number (24994335).

Almost surely, 2^49988669 is an apocalyptic number.

It is an amenable number.

49988669 is a deficient number, since it is larger than the sum of its proper divisors (1).

49988669 is an equidigital number, since it uses as much as digits as its factorization.

49988669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 59.

The square root of 49988669 is about 7070.2665437733. The cubic root of 49988669 is about 368.3753185876.

The spelling of 49988669 in words is "forty-nine million, nine hundred eighty-eight thousand, six hundred sixty-nine".