225520352130 has 32 divisors (see below), whose sum is σ = 541302854400. Its totient is φ = 60132759552.

The previous prime is 225520352129. The next prime is 225520352137. The reversal of 225520352130 is 31253025522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (225520352137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65215 + ... + 674754.

It is an arithmetic number, because the mean of its divisors is an integer number (16915714200).

Almost surely, 2^225520352130 is an apocalyptic number.

225520352130 is an abundant number, since it is smaller than the sum of its proper divisors (315782502270).

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

225520352130 is a wasteful number, since it uses less digits than its factorization.

225520352130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750138.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 225520352130 its reverse (31253025522), we get a palindrome (256773377652).

The spelling of 225520352130 in words is "two hundred twenty-five billion, five hundred twenty million, three hundred fifty-two thousand, one hundred thirty".