223400245025 has 12 divisors (see below), whose sum is σ = 286568591100. Its totient is φ = 172557430080.

The previous prime is 223400245007. The next prime is 223400245063. The reversal of 223400245025 is 520542004322.

It can be written as a sum of positive squares in 6 ways, for example, as 46721254801 + 176678990224 = 216151^2 + 420332^2 .

It is not a de Polignac number, because 223400245025 - 2⁶ = 223400244961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154068410 + ... + 154069859.

It is an arithmetic number, because the mean of its divisors is an integer number (23880715925).

Almost surely, 2^223400245025 is an apocalyptic number.

223400245025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223400245025 is a deficient number, since it is larger than the sum of its proper divisors (63168346075).

223400245025 is a wasteful number, since it uses less digits than its factorization.

223400245025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308138308 (or 308138303 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 223400245025 its reverse (520542004322), we get a palindrome (743942249347).

The spelling of 223400245025 in words is "two hundred twenty-three billion, four hundred million, two hundred forty-five thousand, twenty-five".