2216251425 has 24 divisors (see below), whose sum is σ = 3665559040. Its totient is φ = 1181563200.

The previous prime is 2216251417. The next prime is 2216251459. The reversal of 2216251425 is 5241526122.

It is not a de Polignac number, because 2216251425 - 2³ = 2216251417 is a prime.

It is a super-4 number, since 4×2216251425⁴ (a number of 38 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2216251392 and 2216251401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361536 + ... + 367614.

Almost surely, 2^2216251425 is an apocalyptic number.

2216251425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2216251425 is a deficient number, since it is larger than the sum of its proper divisors (1449307615).

2216251425 is a wasteful number, since it uses less digits than its factorization.

2216251425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953 (or 10948 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 2216251425 is about 47077.0796141817. The cubic root of 2216251425 is about 1303.7860880324.

Adding to 2216251425 its reverse (5241526122), we get a palindrome (7457777547).

The spelling of 2216251425 in words is "two billion, two hundred sixteen million, two hundred fifty-one thousand, four hundred twenty-five".