225501547 has 2 divisors, whose sum is σ = 225501548. Its totient is φ = 225501546.

The previous prime is 225501511. The next prime is 225501559. The reversal of 225501547 is 745105522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225501547 - 2¹¹ = 225499499 is a prime.

It is equal to p_12408790 and since 225501547 and 12408790 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (225501247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112750773 + 112750774.

It is an arithmetic number, because the mean of its divisors is an integer number (112750774).

Almost surely, 2^225501547 is an apocalyptic number.

225501547 is a deficient number, since it is larger than the sum of its proper divisors (1).

225501547 is an equidigital number, since it uses as much as digits as its factorization.

225501547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 225501547 is about 15016.7089270586. The cubic root of 225501547 is about 608.6717916075.

The spelling of 225501547 in words is "two hundred twenty-five million, five hundred one thousand, five hundred forty-seven".