225015515251 has 2 divisors, whose sum is σ = 225015515252. Its totient is φ = 225015515250.

The previous prime is 225015515201. The next prime is 225015515369. The reversal of 225015515251 is 152515510522.

225015515251 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 a de Polignac number, because none of the positive numbers 2^k-225015515251 is a prime.

It is not a weakly prime, because it can be changed into another prime (225015515201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112507757625 + 112507757626.

It is an arithmetic number, because the mean of its divisors is an integer number (112507757626).

Almost surely, 2^225015515251 is an apocalyptic number.

225015515251 is a deficient number, since it is larger than the sum of its proper divisors (1).

225015515251 is an equidigital number, since it uses as much as digits as its factorization.

225015515251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25000, while the sum is 34.

The spelling of 225015515251 in words is "two hundred twenty-five billion, fifteen million, five hundred fifteen thousand, two hundred fifty-one".