49399949 has 2 divisors, whose sum is σ = 49399950. Its totient is φ = 49399948.

The previous prime is 49399937. The next prime is 49399951. The reversal of 49399949 is 94999394.

It is a happy number.

49399949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28697449 + 20702500 = 5357^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 49399949 - 2¹⁶ = 49334413 is a prime.

It is a super-2 number, since 2×49399949² = 4880709922405202, which contains 22 as substring.

Together with 49399951, 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 = 49399894 and 49399903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49399979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24699974 + 24699975.

It is an arithmetic number, because the mean of its divisors is an integer number (24699975).

Almost surely, 2^49399949 is an apocalyptic number.

It is an amenable number.

49399949 is a deficient number, since it is larger than the sum of its proper divisors (1).

49399949 is an equidigital number, since it uses as much as digits as its factorization.

49399949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2834352, while the sum is 56.

The square root of 49399949 is about 7028.5097282425. The cubic root of 49399949 is about 366.9234769314.

The spelling of 49399949 in words is "forty-nine million, three hundred ninety-nine thousand, nine hundred forty-nine".