22495750261 has 2 divisors, whose sum is σ = 22495750262. Its totient is φ = 22495750260.

The previous prime is 22495750237. The next prime is 22495750297. The reversal of 22495750261 is 16205759422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20779222500 + 1716527761 = 144150^2 + 41431^2 .

It is a cyclic number.

It is not a de Polignac number, because 22495750261 - 2¹⁵ = 22495717493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22495750061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11247875130 + 11247875131.

It is an arithmetic number, because the mean of its divisors is an integer number (11247875131).

Almost surely, 2^22495750261 is an apocalyptic number.

It is an amenable number.

22495750261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22495750261 is an equidigital number, since it uses as much as digits as its factorization.

22495750261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 22495750261 in words is "twenty-two billion, four hundred ninety-five million, seven hundred fifty thousand, two hundred sixty-one".