22251052049 has 2 divisors, whose sum is σ = 22251052050. Its totient is φ = 22251052048.

The previous prime is 22251052039. The next prime is 22251052093. The reversal of 22251052049 is 94025015222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21691398400 + 559653649 = 147280^2 + 23657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22251052049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22251052039) 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 as a sum of consecutive naturals, namely, 11125526024 + 11125526025.

It is an arithmetic number, because the mean of its divisors is an integer number (11125526025).

Almost surely, 2^22251052049 is an apocalyptic number.

It is an amenable number.

22251052049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22251052049 is an equidigital number, since it uses as much as digits as its factorization.

22251052049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 22251052049 in words is "twenty-two billion, two hundred fifty-one million, fifty-two thousand, forty-nine".