11223455555537 has 2 divisors, whose sum is σ = 11223455555538. Its totient is φ = 11223455555536.

The previous prime is 11223455555531. The next prime is 11223455555573. The reversal of 11223455555537 is 73555555432211.

11223455555537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (11223455555573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5960634156481 + 5262821399056 = 2441441^2 + 2294084^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223455555537 - 2²⁰ = 11223454506961 is a prime.

It is a super-2 number, since 2×11223455555537² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11223455555531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611727777768 + 5611727777769.

It is an arithmetic number, because the mean of its divisors is an integer number (5611727777769).

Almost surely, 2^{11223455555537} is an apocalyptic number.

It is an amenable number.

11223455555537 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223455555537 is an equidigital number, since it uses as much as digits as its factorization.

11223455555537 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 11223455555537 in words is "eleven trillion, two hundred twenty-three billion, four hundred fifty-five million, five hundred fifty-five thousand, five hundred thirty-seven".