225501511 has 2 divisors, whose sum is σ = 225501512. Its totient is φ = 225501510.

The previous prime is 225501491. The next prime is 225501547. The reversal of 225501511 is 115105522.

It is a happy number.

225501511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225501511 - 2⁷ = 225501383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225501571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112750755 + 112750756.

It is an arithmetic number, because the mean of its divisors is an integer number (112750756).

Almost surely, 2^225501511 is an apocalyptic number.

225501511 is a deficient number, since it is larger than the sum of its proper divisors (1).

225501511 is an equidigital number, since it uses as much as digits as its factorization.

225501511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 225501511 is about 15016.7077283937. The cubic root of 225501511 is about 608.6717592172.

The spelling of 225501511 in words is "two hundred twenty-five million, five hundred one thousand, five hundred eleven".