2155539415 has 16 divisors (see below), whose sum is σ = 2750044608. Its totient is φ = 1618329856.

The previous prime is 2155539409. The next prime is 2155539431. The reversal of 2155539415 is 5149355512.

It is a cyclic number.

It is not a de Polignac number, because 2155539415 - 2²⁵ = 2121984983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170734 + ... + 182923.

It is an arithmetic number, because the mean of its divisors is an integer number (171877788).

Almost surely, 2^2155539415 is an apocalyptic number.

2155539415 is a deficient number, since it is larger than the sum of its proper divisors (594505193).

2155539415 is a wasteful number, since it uses less digits than its factorization.

2155539415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353738.

The product of its digits is 135000, while the sum is 40.

The square root of 2155539415 is about 46427.7870999685. The cubic root of 2155539415 is about 1291.7703823667.

The spelling of 2155539415 in words is "two billion, one hundred fifty-five million, five hundred thirty-nine thousand, four hundred fifteen".