225203530 has 16 divisors (see below), whose sum is σ = 418443264. Its totient is φ = 87175440.

The previous prime is 225203507. The next prime is 225203543. The reversal of 225203530 is 35302522.

225203530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 362922 + ... + 363541.

It is an arithmetic number, because the mean of its divisors is an integer number (26152704).

Almost surely, 2^225203530 is an apocalyptic number.

225203530 is a deficient number, since it is larger than the sum of its proper divisors (193239734).

225203530 is a wasteful number, since it uses less digits than its factorization.

225203530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726501.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 225203530 is about 15006.7827997876. The cubic root of 225203530 is about 608.4035384459.

The spelling of 225203530 in words is "two hundred twenty-five million, two hundred three thousand, five hundred thirty".