220424025 has 12 divisors (see below), whose sum is σ = 364434512. Its totient is φ = 117559440.

The previous prime is 220423999. The next prime is 220424027. The reversal of 220424025 is 520424022.

It is not a de Polignac number, because 220424025 - 2⁵ = 220423993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220423992 and 220424010.

It is not an unprimeable number, because it can be changed into a prime (220424027) 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, 1469419 + ... + 1469568.

Almost surely, 2^220424025 is an apocalyptic number.

220424025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220424025 is a deficient number, since it is larger than the sum of its proper divisors (144010487).

220424025 is a wasteful number, since it uses less digits than its factorization.

220424025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939000 (or 2938995 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 220424025 is about 14846.6839731975. The cubic root of 220424025 is about 604.0686669954.

Adding to 220424025 its reverse (520424022), we get a palindrome (740848047).

The spelling of 220424025 in words is "two hundred twenty million, four hundred twenty-four thousand, twenty-five".