224512400125 has 16 divisors (see below), whose sum is σ = 301744667952. Its totient is φ = 165793771200.

The previous prime is 224512400029. The next prime is 224512400171. The reversal of 224512400125 is 521004215422.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 45470018169 + 179042381956 = 213237^2 + 423134^2 .

It is not a de Polignac number, because 224512400125 - 2⁷ = 224512399997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224512400093 and 224512400102.

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, 69079114 + ... + 69082363.

It is an arithmetic number, because the mean of its divisors is an integer number (18859041747).

Almost surely, 2^224512400125 is an apocalyptic number.

224512400125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224512400125 is a deficient number, since it is larger than the sum of its proper divisors (77232267827).

224512400125 is a wasteful number, since it uses less digits than its factorization.

224512400125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138161505 (or 138161495 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 224512400125 its reverse (521004215422), we get a palindrome (745516615547).

The spelling of 224512400125 in words is "two hundred twenty-four billion, five hundred twelve million, four hundred thousand, one hundred twenty-five".