2225531420 has 24 divisors (see below), whose sum is σ = 5341275744. Its totient is φ = 763039296.

The previous prime is 2225531411. The next prime is 2225531449. The reversal of 2225531420 is 241355222.

It is a self number, because there is not a number n which added to its sum of digits gives 2225531420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7948187 + ... + 7948466.

It is an arithmetic number, because the mean of its divisors is an integer number (222553156).

Almost surely, 2^2225531420 is an apocalyptic number.

2225531420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225531420 is an abundant number, since it is smaller than the sum of its proper divisors (3115744324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2225531420 is a wasteful number, since it uses less digits than its factorization.

2225531420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15896669 (or 15896667 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2225531420 is about 47175.5383647076. The cubic root of 2225531420 is about 1305.6033126886.

Adding to 2225531420 its reverse (241355222), we get a palindrome (2466886642).

The spelling of 2225531420 in words is "two billion, two hundred twenty-five million, five hundred thirty-one thousand, four hundred twenty".