225002550 has 96 divisors (see below), whose sum is σ = 582177024. Its totient is φ = 57456000.

The previous prime is 225002539. The next prime is 225002551. The reversal of 225002550 is 55200522.

It is a super-2 number, since 2×225002550² = 101252295013005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225002551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393765 + ... + 394335.

It is an arithmetic number, because the mean of its divisors is an integer number (6064344).

Almost surely, 2^225002550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225002550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291088512).

225002550 is an abundant number, since it is smaller than the sum of its proper divisors (357174474).

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

225002550 is a wasteful number, since it uses less digits than its factorization.

225002550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 225002550 is about 15000.0849997592. The cubic root of 225002550 is about 608.2224972694. Note that the first 3 decimals are identical.

The spelling of 225002550 in words is "two hundred twenty-five million, two thousand, five hundred fifty".