49108513 has 6 divisors (see below), whose sum is σ = 50861174. Its totient is φ = 47414304.

The previous prime is 49108511. The next prime is 49108541. The reversal of 49108513 is 31580194.

49108513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3640464 + 45468049 = 1908^2 + 6743^2 .

It is not a de Polignac number, because 49108513 - 2¹ = 49108511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49108511) 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 in 5 ways as a sum of consecutive naturals, for example, 28356 + ... + 30037.

Almost surely, 2^49108513 is an apocalyptic number.

It is an amenable number.

49108513 is a deficient number, since it is larger than the sum of its proper divisors (1752661).

49108513 is an equidigital number, since it uses as much as digits as its factorization.

49108513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58451 (or 58422 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 49108513 is about 7007.7466421097. The cubic root of 49108513 is about 366.2004958193.

The spelling of 49108513 in words is "forty-nine million, one hundred eight thousand, five hundred thirteen".