22155235523 has 2 divisors, whose sum is σ = 22155235524. Its totient is φ = 22155235522.

The previous prime is 22155235517. The next prime is 22155235603. The reversal of 22155235523 is 32553255122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22155235523 - 2¹⁴ = 22155219139 is a prime.

It is a super-2 number, since 2×22155235523² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22155234523) 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, 11077617761 + 11077617762.

It is an arithmetic number, because the mean of its divisors is an integer number (11077617762).

Almost surely, 2^22155235523 is an apocalyptic number.

22155235523 is a deficient number, since it is larger than the sum of its proper divisors (1).

22155235523 is an equidigital number, since it uses as much as digits as its factorization.

22155235523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90000, while the sum is 35.

The spelling of 22155235523 in words is "twenty-two billion, one hundred fifty-five million, two hundred thirty-five thousand, five hundred twenty-three".