48219949 has 2 divisors, whose sum is σ = 48219950. Its totient is φ = 48219948.

The previous prime is 48219947. The next prime is 48219989. The reversal of 48219949 is 94991284.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 17892900 = 5507^2 + 4230^2 .

It is a cyclic number.

It is not a de Polignac number, because 48219949 - 2¹ = 48219947 is a prime.

Together with 48219947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 48219899 and 48219908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48219943) 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, 24109974 + 24109975.

It is an arithmetic number, because the mean of its divisors is an integer number (24109975).

Almost surely, 2^48219949 is an apocalyptic number.

It is an amenable number.

48219949 is a deficient number, since it is larger than the sum of its proper divisors (1).

48219949 is an equidigital number, since it uses as much as digits as its factorization.

48219949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 48219949 is about 6944.0585394998. The cubic root of 48219949 is about 363.9783754211.

The spelling of 48219949 in words is "forty-eight million, two hundred nineteen thousand, nine hundred forty-nine".