225522553 has 2 divisors, whose sum is σ = 225522554. Its totient is φ = 225522552.

The previous prime is 225522541. The next prime is 225522569. The reversal of 225522553 is 355225522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225360144 + 162409 = 15012^2 + 403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225522553 is a prime.

It is not a weakly prime, because it can be changed into another prime (225522053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112761276 + 112761277.

It is an arithmetic number, because the mean of its divisors is an integer number (112761277).

Almost surely, 2^225522553 is an apocalyptic number.

It is an amenable number.

225522553 is a deficient number, since it is larger than the sum of its proper divisors (1).

225522553 is an equidigital number, since it uses as much as digits as its factorization.

225522553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30000, while the sum is 31.

The square root of 225522553 is about 15017.4083316663. The cubic root of 225522553 is about 608.6906907575.

The spelling of 225522553 in words is "two hundred twenty-five million, five hundred twenty-two thousand, five hundred fifty-three".