225645721125000 has 224 divisors, whose sum is σ = 769236944266080. Its totient is φ = 54701992000000.

The previous prime is 225645721124981. The next prime is 225645721125017. The reversal of 225645721125000 is 521127546522.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 23225997 + ... + 31475996.

Almost surely, 2^{225645721125000} is an apocalyptic number.

225645721125000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225645721125000 is an abundant number, since it is smaller than the sum of its proper divisors (543591223141080).

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

225645721125000 is an equidigital number, since it uses as much as digits as its factorization.

225645721125000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54702043 (or 54702014 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 225645721125000 in words is "two hundred twenty-five trillion, six hundred forty-five billion, seven hundred twenty-one million, one hundred twenty-five thousand".