2105354925 has 36 divisors (see below), whose sum is σ = 3892580224. Its totient is φ = 1086631200.

The previous prime is 2105354921. The next prime is 2105354929. The reversal of 2105354925 is 5294535012.

It is a happy number.

2105354925 is a `hidden beast` number, since 2 + 105 + 3 + 549 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2105354921) and next prime (2105354929).

It is not a de Polignac number, because 2105354925 - 2² = 2105354921 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105354925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105354921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 143947 + ... + 157896.

Almost surely, 2^2105354925 is an apocalyptic number.

2105354925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105354925 is a deficient number, since it is larger than the sum of its proper divisors (1787225299).

2105354925 is a wasteful number, since it uses less digits than its factorization.

2105354925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301890 (or 301882 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 2105354925 is about 45884.1467720606. The cubic root of 2105354925 is about 1281.6667181487. Note that the first 3 decimals are identical.

Adding to 2105354925 its reverse (5294535012), we get a palindrome (7399889937).

The spelling of 2105354925 in words is "two billion, one hundred five million, three hundred fifty-four thousand, nine hundred twenty-five".