2120453425 has 12 divisors (see below), whose sum is σ = 2629941916. Its totient is φ = 1695988800.

The previous prime is 2120453399. The next prime is 2120453429. The reversal of 2120453425 is 5243540212.

It can be written as a sum of positive squares in 6 ways, for example, as 117353889 + 2003099536 = 10833^2 + 44756^2 .

It is not a de Polignac number, because 2120453425 - 2⁷ = 2120453297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120453393 and 2120453402.

It is not an unprimeable number, because it can be changed into a prime (2120453429) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 188047 + ... + 199003.

Almost surely, 2^2120453425 is an apocalyptic number.

2120453425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2120453425 is a deficient number, since it is larger than the sum of its proper divisors (509488491).

2120453425 is a wasteful number, since it uses less digits than its factorization.

2120453425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18708 (or 18703 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2120453425 is about 46048.3813504883. The cubic root of 2120453425 is about 1284.7232367356.

Adding to 2120453425 its reverse (5243540212), we get a palindrome (7363993637).

The spelling of 2120453425 in words is "two billion, one hundred twenty million, four hundred fifty-three thousand, four hundred twenty-five".