225130725500 has 48 divisors (see below), whose sum is σ = 496196500800. Its totient is φ = 89226100800.

The previous prime is 225130725451. The next prime is 225130725551. The reversal of 225130725500 is 5527031522.

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, 2010920 + ... + 2119919.

It is an arithmetic number, because the mean of its divisors is an integer number (10337427100).

Almost surely, 2^225130725500 is an apocalyptic number.

225130725500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225130725500 is an abundant number, since it is smaller than the sum of its proper divisors (271065775300).

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

225130725500 is a wasteful number, since it uses less digits than its factorization.

225130725500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130967 (or 4130955 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The spelling of 225130725500 in words is "two hundred twenty-five billion, one hundred thirty million, seven hundred twenty-five thousand, five hundred".