157171015225 has 12 divisors (see below), whose sum is σ = 222733781824. Its totient is φ = 107774410320.

The previous prime is 157171015213. The next prime is 157171015237. The reversal of 157171015225 is 522510171751.

157171015225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157171015213) and next prime (157171015237).

It is not a de Polignac number, because 157171015225 - 2⁹ = 157171014713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 449059869 + ... + 449060218.

Almost surely, 2^157171015225 is an apocalyptic number.

It is an amenable number.

157171015225 is a deficient number, since it is larger than the sum of its proper divisors (65562766599).

157171015225 is an equidigital number, since it uses as much as digits as its factorization.

157171015225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898120104 (or 898120099 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 37.

Adding to 157171015225 its reverse (522510171751), we get a palindrome (679681186976).

The spelling of 157171015225 in words is "one hundred fifty-seven billion, one hundred seventy-one million, fifteen thousand, two hundred twenty-five".