156553045225 has 6 divisors (see below), whose sum is σ = 194125776110. Its totient is φ = 125242436160.

The previous prime is 156553045217. The next prime is 156553045249. The reversal of 156553045225 is 522540355651.

156553045225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1138117696 + 155414927529 = 33736^2 + 394227^2 .

It is not a de Polignac number, because 156553045225 - 2³ = 156553045217 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 3131060880 + ... + 3131060929.

Almost surely, 2^156553045225 is an apocalyptic number.

It is an amenable number.

156553045225 is a deficient number, since it is larger than the sum of its proper divisors (37572730885).

156553045225 is an equidigital number, since it uses as much as digits as its factorization.

156553045225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262121819 (or 6262121814 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 156553045225 in words is "one hundred fifty-six billion, five hundred fifty-three million, forty-five thousand, two hundred twenty-five".