2120925425 has 6 divisors (see below), whose sum is σ = 2629947558. Its totient is φ = 1696740320.

The previous prime is 2120925413. The next prime is 2120925437. The reversal of 2120925425 is 5245290212.

It is an interprime number because it is at equal distance from previous prime (2120925413) and next prime (2120925437).

It can be written as a sum of positive squares in 3 ways, for example, as 35724529 + 2085200896 = 5977^2 + 45664^2 .

It is not a de Polignac number, because 2120925425 - 2¹² = 2120921329 is a prime.

It is a super-2 number, since 2×2120925425² = 8996649316822861250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120925391 and 2120925400.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 42418484 + ... + 42418533.

It is an arithmetic number, because the mean of its divisors is an integer number (438324593).

Almost surely, 2^2120925425 is an apocalyptic number.

2120925425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2120925425 is a deficient number, since it is larger than the sum of its proper divisors (509022133).

2120925425 is an equidigital number, since it uses as much as digits as its factorization.

2120925425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84837027 (or 84837022 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2120925425 is about 46053.5061097415. The cubic root of 2120925425 is about 1284.8185535160.

The spelling of 2120925425 in words is "two billion, one hundred twenty million, nine hundred twenty-five thousand, four hundred twenty-five".