225529631889 has 12 divisors (see below), whose sum is σ = 308219365008. Its totient is φ = 146685936160.

The previous prime is 225529631863. The next prime is 225529631993. The reversal of 225529631889 is 988136925522.

It is not a de Polignac number, because 225529631889 - 2³⁶ = 156810155153 is a prime.

It is a super-2 number, since 2×225529631889² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225529631839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22355619 + ... + 22365704.

It is an arithmetic number, because the mean of its divisors is an integer number (25684947084).

Almost surely, 2^225529631889 is an apocalyptic number.

It is an amenable number.

225529631889 is a deficient number, since it is larger than the sum of its proper divisors (82689733119).

225529631889 is an equidigital number, since it uses as much as digits as its factorization.

225529631889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44721408 (or 44721367 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 60.

The spelling of 225529631889 in words is "two hundred twenty-five billion, five hundred twenty-nine million, six hundred thirty-one thousand, eight hundred eighty-nine".