49538513 has 2 divisors, whose sum is σ = 49538514. Its totient is φ = 49538512.

The previous prime is 49538497. The next prime is 49538521. The reversal of 49538513 is 31583594.

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., 39853969 + 9684544 = 6313^2 + 3112^2 .

It is a cyclic number.

It is not a de Polignac number, because 49538513 - 2⁴ = 49538497 is a prime.

It is not a weakly prime, because it can be changed into another prime (49538543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24769256 + 24769257.

It is an arithmetic number, because the mean of its divisors is an integer number (24769257).

Almost surely, 2^49538513 is an apocalyptic number.

It is an amenable number.

49538513 is a deficient number, since it is larger than the sum of its proper divisors (1).

49538513 is an equidigital number, since it uses as much as digits as its factorization.

49538513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 49538513 is about 7038.3601072977. The cubic root of 49538513 is about 367.2662230474.

The spelling of 49538513 in words is "forty-nine million, five hundred thirty-eight thousand, five hundred thirteen".