2105553012 has 12 divisors (see below), whose sum is σ = 4912957056. Its totient is φ = 701851000.

The previous prime is 2105552971. The next prime is 2105553013. The reversal of 2105553012 is 2103555012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105553013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87731364 + ... + 87731387.

It is an arithmetic number, because the mean of its divisors is an integer number (409413088).

Almost surely, 2^2105553012 is an apocalyptic number.

It is an amenable number.

2105553012 is an abundant number, since it is smaller than the sum of its proper divisors (2807404044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105553012 is a wasteful number, since it uses less digits than its factorization.

2105553012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175462758 (or 175462756 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2105553012 is about 45886.3052772829. The cubic root of 2105553012 is about 1281.7069130425.

The spelling of 2105553012 in words is "two billion, one hundred five million, five hundred fifty-three thousand, twelve".