49729949 has 2 divisors, whose sum is σ = 49729950. Its totient is φ = 49729948.

The previous prime is 49729937. The next prime is 49729951. The reversal of 49729949 is 94992794.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35022724 + 14707225 = 5918^2 + 3835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49729949 is a prime.

Together with 49729951, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49729949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49729249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24864974 + 24864975.

It is an arithmetic number, because the mean of its divisors is an integer number (24864975).

Almost surely, 2^49729949 is an apocalyptic number.

It is an amenable number.

49729949 is a deficient number, since it is larger than the sum of its proper divisors (1).

49729949 is an equidigital number, since it uses as much as digits as its factorization.

49729949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 53.

The square root of 49729949 is about 7051.9464688836. The cubic root of 49729949 is about 367.7387012642.

The spelling of 49729949 in words is "forty-nine million, seven hundred twenty-nine thousand, nine hundred forty-nine".