2155539071 has 16 divisors (see below), whose sum is σ = 2509973568. Its totient is φ = 1813056000.

The previous prime is 2155539053. The next prime is 2155539077. The reversal of 2155539071 is 1709355512.

It is not a de Polignac number, because 2155539071 - 2¹⁸ = 2155276927 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 (2155539077) 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, 66401 + ... + 93381.

It is an arithmetic number, because the mean of its divisors is an integer number (156873348).

Almost surely, 2^2155539071 is an apocalyptic number.

2155539071 is a deficient number, since it is larger than the sum of its proper divisors (354434497).

2155539071 is a wasteful number, since it uses less digits than its factorization.

2155539071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27202.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 2155539071 is about 46427.7833952904. The cubic root of 2155539071 is about 1291.7703136493.

The spelling of 2155539071 in words is "two billion, one hundred fifty-five million, five hundred thirty-nine thousand, seventy-one".