2102105552 has 20 divisors (see below), whose sum is σ = 4108875780. Its totient is φ = 1041750528.

The previous prime is 2102105519. The next prime is 2102105561. The reversal of 2102105552 is 2555012012.

It can be written as a sum of positive squares in 2 ways, for example, as 100080016 + 2002025536 = 10004^2 + 44744^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579527 + ... + 583142.

It is an arithmetic number, because the mean of its divisors is an integer number (205443789).

Almost surely, 2^2102105552 is an apocalyptic number.

It is an amenable number.

2102105552 is a deficient number, since it is larger than the sum of its proper divisors (2006770228).

2102105552 is a wasteful number, since it uses less digits than its factorization.

2102105552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162790 (or 1162784 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2102105552 is about 45848.7246496563. The cubic root of 2102105552 is about 1281.0070102847.

Adding to 2102105552 its reverse (2555012012), we get a palindrome (4657117564).

The spelling of 2102105552 in words is "two billion, one hundred two million, one hundred five thousand, five hundred fifty-two".