49561205053 has 2 divisors, whose sum is σ = 49561205054. Its totient is φ = 49561205052.

The previous prime is 49561205003. The next prime is 49561205107. The reversal of 49561205053 is 35050216594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48983427684 + 577777369 = 221322^2 + 24037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49561205053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49561204997 and 49561205015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49561205003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24780602526 + 24780602527.

It is an arithmetic number, because the mean of its divisors is an integer number (24780602527).

Almost surely, 2^49561205053 is an apocalyptic number.

It is an amenable number.

49561205053 is a deficient number, since it is larger than the sum of its proper divisors (1).

49561205053 is an equidigital number, since it uses as much as digits as its factorization.

49561205053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 49561205053 in words is "forty-nine billion, five hundred sixty-one million, two hundred five thousand, fifty-three".