2102417425 has 6 divisors (see below), whose sum is σ = 2606997638. Its totient is φ = 1681933920.

The previous prime is 2102417417. The next prime is 2102417453. The reversal of 2102417425 is 5247142012.

It can be written as a sum of positive squares in 3 ways, for example, as 248598289 + 1853819136 = 15767^2 + 43056^2 .

It is not a de Polignac number, because 2102417425 - 2³ = 2102417417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102417393 and 2102417402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42048324 + ... + 42048373.

Almost surely, 2^2102417425 is an apocalyptic number.

2102417425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102417425 is a deficient number, since it is larger than the sum of its proper divisors (504580213).

2102417425 is an equidigital number, since it uses as much as digits as its factorization.

2102417425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84096707 (or 84096702 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2102417425 is about 45852.1256322976. The cubic root of 2102417425 is about 1281.0703581572.

Adding to 2102417425 its reverse (5247142012), we get a palindrome (7349559437).

The spelling of 2102417425 in words is "two billion, one hundred two million, four hundred seventeen thousand, four hundred twenty-five".