223442143025 has 12 divisors (see below), whose sum is σ = 277487443164. Its totient is φ = 178483272000.

The previous prime is 223442143021. The next prime is 223442143061. The reversal of 223442143025 is 520341244322.

It can be written as a sum of positive squares in 6 ways, for example, as 37503376 + 223404639649 = 6124^2 + 472657^2 .

It is not a de Polignac number, because 223442143025 - 2² = 223442143021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223442142982 and 223442143000.

It is not an unprimeable number, because it can be changed into a prime (223442143021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6744206 + ... + 6777255.

It is an arithmetic number, because the mean of its divisors is an integer number (23123953597).

Almost surely, 2^223442143025 is an apocalyptic number.

223442143025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223442143025 is a deficient number, since it is larger than the sum of its proper divisors (54045300139).

223442143025 is a wasteful number, since it uses less digits than its factorization.

223442143025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13522132 (or 13522127 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 223442143025 its reverse (520341244322), we get a palindrome (743783387347).

The spelling of 223442143025 in words is "two hundred twenty-three billion, four hundred forty-two million, one hundred forty-three thousand, twenty-five".