2141511555 has 16 divisors (see below), whose sum is σ = 3457856160. Its totient is φ = 1131660288.

The previous prime is 2141511551. The next prime is 2141511563. The reversal of 2141511555 is 5551151412.

It is not a de Polignac number, because 2141511555 - 2² = 2141511551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2141511551) 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, 653262 + ... + 656531.

It is an arithmetic number, because the mean of its divisors is an integer number (216116010).

Almost surely, 2^2141511555 is an apocalyptic number.

2141511555 is a deficient number, since it is larger than the sum of its proper divisors (1316344605).

2141511555 is a wasteful number, since it uses less digits than its factorization.

2141511555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309910.

The product of its digits is 5000, while the sum is 30.

The square root of 2141511555 is about 46276.4686963040. The cubic root of 2141511555 is about 1288.9620790106.

Adding to 2141511555 its reverse (5551151412), we get a palindrome (7692662967).

The spelling of 2141511555 in words is "two billion, one hundred forty-one million, five hundred eleven thousand, five hundred fifty-five".