49522097861 has 2 divisors, whose sum is σ = 49522097862. Its totient is φ = 49522097860.

The previous prime is 49522097851. The next prime is 49522097897. The reversal of 49522097861 is 16879022594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48114422500 + 1407675361 = 219350^2 + 37519^2 .

It is a cyclic number.

It is not a de Polignac number, because 49522097861 - 2¹⁰ = 49522096837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49522097831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24761048930 + 24761048931.

It is an arithmetic number, because the mean of its divisors is an integer number (24761048931).

Almost surely, 2^49522097861 is an apocalyptic number.

It is an amenable number.

49522097861 is a deficient number, since it is larger than the sum of its proper divisors (1).

49522097861 is an equidigital number, since it uses as much as digits as its factorization.

49522097861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 49522097861 in words is "forty-nine billion, five hundred twenty-two million, ninety-seven thousand, eight hundred sixty-one".