2105101525 has 24 divisors (see below), whose sum is σ = 2631840480. Its totient is φ = 1670266560.

The previous prime is 2105101513. The next prime is 2105101529. The reversal of 2105101525 is 5251015012.

It is a happy number.

It is not a de Polignac number, because 2105101525 - 2²¹ = 2103004373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105101496 and 2105101505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105101529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1968691 + ... + 1969759.

It is an arithmetic number, because the mean of its divisors is an integer number (109660020).

Almost surely, 2^2105101525 is an apocalyptic number.

2105101525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105101525 is a deficient number, since it is larger than the sum of its proper divisors (526738955).

2105101525 is a wasteful number, since it uses less digits than its factorization.

2105101525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 2105101525 is about 45881.3853866685. The cubic root of 2105101525 is about 1281.6152957221.

Adding to 2105101525 its reverse (5251015012), we get a palindrome (7356116537).

The spelling of 2105101525 in words is "two billion, one hundred five million, one hundred one thousand, five hundred twenty-five".