49513729 has 2 divisors, whose sum is σ = 49513730. Its totient is φ = 49513728.

The previous prime is 49513699. The next prime is 49513771. The reversal of 49513729 is 92731594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46444225 + 3069504 = 6815^2 + 1752^2 .

It is a cyclic number.

It is not a de Polignac number, because 49513729 - 2¹³ = 49505537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 49513691 and 49513700.

It is not a weakly prime, because it can be changed into another prime (49513799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24756864 + 24756865.

It is an arithmetic number, because the mean of its divisors is an integer number (24756865).

Almost surely, 2^49513729 is an apocalyptic number.

It is an amenable number.

49513729 is a deficient number, since it is larger than the sum of its proper divisors (1).

49513729 is an equidigital number, since it uses as much as digits as its factorization.

49513729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 49513729 is about 7036.5992496376. The cubic root of 49513729 is about 367.2049653585.

The spelling of 49513729 in words is "forty-nine million, five hundred thirteen thousand, seven hundred twenty-nine".