2155071583 has 8 divisors (see below), whose sum is σ = 2504684160. Its totient is φ = 1815895320.

The previous prime is 2155071571. The next prime is 2155071593. The reversal of 2155071583 is 3851705512.

It is a happy number.

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 2155071583 - 2⁵ = 2155071551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155071593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2608633 + ... + 2609458.

It is an arithmetic number, because the mean of its divisors is an integer number (313085520).

Almost surely, 2^2155071583 is an apocalyptic number.

2155071583 is a deficient number, since it is larger than the sum of its proper divisors (349612577).

2155071583 is an equidigital number, since it uses as much as digits as its factorization.

2155071583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218157.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 2155071583 is about 46422.7485506836. The cubic root of 2155071583 is about 1291.6769215770.

The spelling of 2155071583 in words is "two billion, one hundred fifty-five million, seventy-one thousand, five hundred eighty-three".