49542295813 has 2 divisors, whose sum is σ = 49542295814. Its totient is φ = 49542295812.

The previous prime is 49542295771. The next prime is 49542295819. The reversal of 49542295813 is 31859224594.

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., 32977833604 + 16564462209 = 181598^2 + 128703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49542295813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49542295819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24771147906 + 24771147907.

It is an arithmetic number, because the mean of its divisors is an integer number (24771147907).

Almost surely, 2^49542295813 is an apocalyptic number.

It is an amenable number.

49542295813 is a deficient number, since it is larger than the sum of its proper divisors (1).

49542295813 is an equidigital number, since it uses as much as digits as its factorization.

49542295813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 52.

The spelling of 49542295813 in words is "forty-nine billion, five hundred forty-two million, two hundred ninety-five thousand, eight hundred thirteen".