2225522000 has 80 divisors (see below), whose sum is σ = 5795326992. Its totient is φ = 821721600.

The previous prime is 2225521999. The next prime is 2225522011. The reversal of 2225522000 is 2255222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1825681984 + 399840016 = 42728^2 + 19996^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16799 + ... + 68798.

Almost surely, 2^2225522000 is an apocalyptic number.

2225522000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225522000 is an abundant number, since it is smaller than the sum of its proper divisors (3569804992).

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

2225522000 is a wasteful number, since it uses less digits than its factorization.

2225522000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85633 (or 85617 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2225522000 is about 47175.4385247239. The cubic root of 2225522000 is about 1305.6014706116.

Adding to 2225522000 its reverse (2255222), we get a palindrome (2227777222).

The spelling of 2225522000 in words is "two billion, two hundred twenty-five million, five hundred twenty-two thousand".