225252464550 has 96 divisors (see below), whose sum is σ = 572483358720. Its totient is φ = 58578489600.

The previous prime is 225252464471. The next prime is 225252464599. The reversal of 225252464550 is 55464252522.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19175979 + ... + 19187721.

It is an arithmetic number, because the mean of its divisors is an integer number (5963368320).

Almost surely, 2^225252464550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225252464550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286241679360).

225252464550 is an abundant number, since it is smaller than the sum of its proper divisors (347230894170).

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

225252464550 is a wasteful number, since it uses less digits than its factorization.

225252464550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14918 (or 14913 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 42.

The spelling of 225252464550 in words is "two hundred twenty-five billion, two hundred fifty-two million, four hundred sixty-four thousand, five hundred fifty".