49802101 has 2 divisors, whose sum is σ = 49802102. Its totient is φ = 49802100.

The previous prime is 49802099. The next prime is 49802117. The reversal of 49802101 is 10120894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33074001 + 16728100 = 5751^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 49802101 - 2¹ = 49802099 is a prime.

Together with 49802099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49802131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24901050 + 24901051.

It is an arithmetic number, because the mean of its divisors is an integer number (24901051).

Almost surely, 2^49802101 is an apocalyptic number.

It is an amenable number.

49802101 is a deficient number, since it is larger than the sum of its proper divisors (1).

49802101 is an equidigital number, since it uses as much as digits as its factorization.

49802101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 49802101 is about 7057.0603653363. The cubic root of 49802101 is about 367.9164630996.

Adding to 49802101 its reverse (10120894), we get a palindrome (59922995).

The spelling of 49802101 in words is "forty-nine million, eight hundred two thousand, one hundred one".