49968551 has 2 divisors, whose sum is σ = 49968552. Its totient is φ = 49968550.

The previous prime is 49968539. The next prime is 49968553. The reversal of 49968551 is 15586994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49968551 - 2¹⁰ = 49967527 is a prime.

Together with 49968553, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 49968496 and 49968505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49968553) 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, 24984275 + 24984276.

It is an arithmetic number, because the mean of its divisors is an integer number (24984276).

Almost surely, 2^49968551 is an apocalyptic number.

49968551 is a deficient number, since it is larger than the sum of its proper divisors (1).

49968551 is an equidigital number, since it uses as much as digits as its factorization.

49968551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 47.

The square root of 49968551 is about 7068.8436819610. The cubic root of 49968551 is about 368.3258942600.

The spelling of 49968551 in words is "forty-nine million, nine hundred sixty-eight thousand, five hundred fifty-one".