159955553 has 2 divisors, whose sum is σ = 159955554. Its totient is φ = 159955552.

The previous prime is 159955519. The next prime is 159955651. The reversal of 159955553 is 355559951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159567424 + 388129 = 12632^2 + 623^2 .

It is an emirp because it is prime and its reverse (355559951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159955553 - 2⁸ = 159955297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 159955498 and 159955507.

It is not a weakly prime, because it can be changed into another prime (159951553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79977776 + 79977777.

It is an arithmetic number, because the mean of its divisors is an integer number (79977777).

Almost surely, 2^159955553 is an apocalyptic number.

It is an amenable number.

159955553 is a deficient number, since it is larger than the sum of its proper divisors (1).

159955553 is an equidigital number, since it uses as much as digits as its factorization.

159955553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 759375, while the sum is 47.

The square root of 159955553 is about 12647.3535967016. The cubic root of 159955553 is about 542.8332487801.

The spelling of 159955553 in words is "one hundred fifty-nine million, nine hundred fifty-five thousand, five hundred fifty-three".