225220553 has 2 divisors, whose sum is σ = 225220554. Its totient is φ = 225220552.

The previous prime is 225220529. The next prime is 225220579. The reversal of 225220553 is 355022522.

It is a happy number.

It is an a-pointer prime, because the next prime (225220579) can be obtained adding 225220553 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222994489 + 2226064 = 14933^2 + 1492^2 .

It is a cyclic number.

It is not a de Polignac number, because 225220553 - 2⁸ = 225220297 is a prime.

It is not a weakly prime, because it can be changed into another prime (225240553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112610276 + 112610277.

It is an arithmetic number, because the mean of its divisors is an integer number (112610277).

Almost surely, 2^225220553 is an apocalyptic number.

It is an amenable number.

225220553 is a deficient number, since it is larger than the sum of its proper divisors (1).

225220553 is an equidigital number, since it uses as much as digits as its factorization.

225220553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 225220553 is about 15007.3499659334. The cubic root of 225220553 is about 608.4188676794.

The spelling of 225220553 in words is "two hundred twenty-five million, two hundred twenty thousand, five hundred fifty-three".