11223455555573 has 2 divisors, whose sum is σ = 11223455555574. Its totient is φ = 11223455555572.

The previous prime is 11223455555537. The next prime is 11223455555597. The reversal of 11223455555573 is 37555555432211.

Together with previous prime (11223455555537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7452938220049 + 3770517335524 = 2730007^2 + 1941782^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223455555573 - 2²⁶ = 11223388446709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11223455555503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611727777786 + 5611727777787.

It is an arithmetic number, because the mean of its divisors is an integer number (5611727777787).

Almost surely, 2^{11223455555573} is an apocalyptic number.

It is an amenable number.

11223455555573 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223455555573 is an equidigital number, since it uses as much as digits as its factorization.

11223455555573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15750000, while the sum is 53.

The spelling of 11223455555573 in words is "eleven trillion, two hundred twenty-three billion, four hundred fifty-five million, five hundred fifty-five thousand, five hundred seventy-three".