225550223531 has 2 divisors, whose sum is σ = 225550223532. Its totient is φ = 225550223530.

The previous prime is 225550223471. The next prime is 225550223567. The reversal of 225550223531 is 135322055522.

225550223531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225550223531 is a prime.

It is a super-2 number, since 2×225550223531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225550223491 and 225550223500.

It is not a weakly prime, because it can be changed into another prime (225550223131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112775111765 + 112775111766.

It is an arithmetic number, because the mean of its divisors is an integer number (112775111766).

Almost surely, 2^225550223531 is an apocalyptic number.

225550223531 is a deficient number, since it is larger than the sum of its proper divisors (1).

225550223531 is an equidigital number, since it uses as much as digits as its factorization.

225550223531 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 225550223531 in words is "two hundred twenty-five billion, five hundred fifty million, two hundred twenty-three thousand, five hundred thirty-one".