2139553555 has 8 divisors (see below), whose sum is σ = 2615907312. Its totient is φ = 1679347488.

The previous prime is 2139553543. The next prime is 2139553571. The reversal of 2139553555 is 5553559312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2139553555 - 2¹⁵ = 2139520787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4036629 + ... + 4037158.

It is an arithmetic number, because the mean of its divisors is an integer number (326988414).

Almost surely, 2^2139553555 is an apocalyptic number.

2139553555 is a deficient number, since it is larger than the sum of its proper divisors (476353757).

2139553555 is an equidigital number, since it uses as much as digits as its factorization.

2139553555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8073845.

The product of its digits is 506250, while the sum is 43.

The square root of 2139553555 is about 46255.3083980639. The cubic root of 2139553555 is about 1288.5691233421.

The spelling of 2139553555 in words is "two billion, one hundred thirty-nine million, five hundred fifty-three thousand, five hundred fifty-five".