2220425525 has 6 divisors (see below), whose sum is σ = 2753327682. Its totient is φ = 1776340400.

The previous prime is 2220425521. The next prime is 2220425527. The reversal of 2220425525 is 5255240222.

It can be written as a sum of positive squares in 3 ways, for example, as 164891281 + 2055534244 = 12841^2 + 45338^2 .

It is not a de Polignac number, because 2220425525 - 2² = 2220425521 is a prime.

It is a super-3 number, since 3×2220425525³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220425521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44408486 + ... + 44408535.

It is an arithmetic number, because the mean of its divisors is an integer number (458887947).

Almost surely, 2^2220425525 is an apocalyptic number.

2220425525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2220425525 is a deficient number, since it is larger than the sum of its proper divisors (532902157).

2220425525 is an equidigital number, since it uses as much as digits as its factorization.

2220425525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88817031 (or 88817026 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 2220425525 is about 47121.3913737699. The cubic root of 2220425525 is about 1304.6040939737.

Adding to 2220425525 its reverse (5255240222), we get a palindrome (7475665747).

The spelling of 2220425525 in words is "two billion, two hundred twenty million, four hundred twenty-five thousand, five hundred twenty-five".