2105445225 has 48 divisors (see below), whose sum is σ = 3850156352. Its totient is φ = 1008495360.

The previous prime is 2105445179. The next prime is 2105445227. The reversal of 2105445225 is 5225445012.

It is not a de Polignac number, because 2105445225 - 2²¹ = 2103348073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2105445192 and 2105445201.

It is not an unprimeable number, because it can be changed into a prime (2105445227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6894 + ... + 65256.

Almost surely, 2^2105445225 is an apocalyptic number.

2105445225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105445225 is a deficient number, since it is larger than the sum of its proper divisors (1744711127).

2105445225 is a wasteful number, since it uses less digits than its factorization.

2105445225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58426 (or 58421 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2105445225 is about 45885.1307615005. The cubic root of 2105445225 is about 1281.6850417179.

The spelling of 2105445225 in words is "two billion, one hundred five million, four hundred forty-five thousand, two hundred twenty-five".