225733553 has 2 divisors, whose sum is σ = 225733554. Its totient is φ = 225733552.

The previous prime is 225733511. The next prime is 225733561. The reversal of 225733553 is 355337522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199035664 + 26697889 = 14108^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 225733553 - 2²² = 221539249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225733583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112866776 + 112866777.

It is an arithmetic number, because the mean of its divisors is an integer number (112866777).

Almost surely, 2^225733553 is an apocalyptic number.

It is an amenable number.

225733553 is a deficient number, since it is larger than the sum of its proper divisors (1).

225733553 is an equidigital number, since it uses as much as digits as its factorization.

225733553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 35.

The square root of 225733553 is about 15024.4318694585. The cubic root of 225733553 is about 608.8804629117.

The spelling of 225733553 in words is "two hundred twenty-five million, seven hundred thirty-three thousand, five hundred fifty-three".