159555 has 16 divisors (see below), whose sum is σ = 278784. Its totient is φ = 77280.

The previous prime is 159553. The next prime is 159563. The reversal of 159555 is 555951.

159555 = T₄₇ + T₄₈ + ... + T₁₀₁.

It is not a de Polignac number, because 159555 - 2¹ = 159553 is a prime.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (159553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319 + ... + 648.

It is an arithmetic number, because the mean of its divisors is an integer number (17424).

2¹⁵⁹⁵⁵⁵ is an apocalyptic number.

159555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159555 is a deficient number, since it is larger than the sum of its proper divisors (119229).

159555 is a wasteful number, since it uses less digits than its factorization.

159555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its digits is 5625, while the sum is 30.

The square root of 159555 is about 399.4433626936. The cubic root of 159555 is about 54.2379757731.

The spelling of 159555 in words is "one hundred fifty-nine thousand, five hundred fifty-five".