2102361425 has 12 divisors (see below), whose sum is σ = 2607661596. Its totient is φ = 1681416000.

The previous prime is 2102361421. The next prime is 2102361431. The reversal of 2102361425 is 5241632012.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 147306769 + 1955054656 = 12137^2 + 44216^2 .

It is not a de Polignac number, because 2102361425 - 2² = 2102361421 is a prime.

It is a super-2 number, since 2×2102361425² = 8839847122656061250, 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 = 2102361394 and 2102361403.

It is not an unprimeable number, because it can be changed into a prime (2102361421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99275 + ... + 118575.

It is an arithmetic number, because the mean of its divisors is an integer number (217305133).

Almost surely, 2^2102361425 is an apocalyptic number.

2102361425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102361425 is a deficient number, since it is larger than the sum of its proper divisors (505300171).

2102361425 is a wasteful number, since it uses less digits than its factorization.

2102361425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23668 (or 23663 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2102361425 is about 45851.5149695187. The cubic root of 2102361425 is about 1281.0589838576.

Adding to 2102361425 its reverse (5241632012), we get a palindrome (7343993437).

The spelling of 2102361425 in words is "two billion, one hundred two million, three hundred sixty-one thousand, four hundred twenty-five".