2126510555 has 16 divisors (see below), whose sum is σ = 2769094944. Its totient is φ = 1558352640.

The previous prime is 2126510549. The next prime is 2126510597. The reversal of 2126510555 is 5550156212.

It is not a de Polignac number, because 2126510555 - 2¹⁴ = 2126494171 is a prime.

It is a Duffinian 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, 116354 + ... + 133383.

It is an arithmetic number, because the mean of its divisors is an integer number (173068434).

Almost surely, 2^2126510555 is an apocalyptic number.

2126510555 is a deficient number, since it is larger than the sum of its proper divisors (642584389).

2126510555 is a wasteful number, since it uses less digits than its factorization.

2126510555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249886.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 2126510555 is about 46114.1036451973. The cubic root of 2126510555 is about 1285.9453555094.

Adding to 2126510555 its reverse (5550156212), we get a palindrome (7676666767).

The spelling of 2126510555 in words is "two billion, one hundred twenty-six million, five hundred ten thousand, five hundred fifty-five".