223544020425 has 48 divisors (see below), whose sum is σ = 403337309760. Its totient is φ = 108345952000.

The previous prime is 223544020367. The next prime is 223544020481. The reversal of 223544020425 is 524020445322.

It is not a de Polignac number, because 223544020425 - 2⁹ = 223544019913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2312971 + ... + 2407679.

It is an arithmetic number, because the mean of its divisors is an integer number (8402860620).

Almost surely, 2^223544020425 is an apocalyptic number.

223544020425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223544020425 is a deficient number, since it is larger than the sum of its proper divisors (179793289335).

223544020425 is a wasteful number, since it uses less digits than its factorization.

223544020425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97594 (or 97589 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 223544020425 its reverse (524020445322), we get a palindrome (747564465747).

The spelling of 223544020425 in words is "two hundred twenty-three billion, five hundred forty-four million, twenty thousand, four hundred twenty-five".