22724200025 has 6 divisors (see below), whose sum is σ = 28178008062. Its totient is φ = 18179360000.

The previous prime is 22724200019. The next prime is 22724200027. The reversal of 22724200025 is 52000242722.

It can be written as a sum of positive squares in 3 ways, for example, as 858958864 + 21865241161 = 29308^2 + 147869^2 .

It is not a de Polignac number, because 22724200025 - 2¹⁸ = 22723937881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22724199967 and 22724200003.

It is not an unprimeable number, because it can be changed into a prime (22724200027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454483976 + ... + 454484025.

It is an arithmetic number, because the mean of its divisors is an integer number (4696334677).

Almost surely, 2^22724200025 is an apocalyptic number.

22724200025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22724200025 is a deficient number, since it is larger than the sum of its proper divisors (5453808037).

22724200025 is an equidigital number, since it uses as much as digits as its factorization.

22724200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908968011 (or 908968006 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

Adding to 22724200025 its reverse (52000242722), we get a palindrome (74724442747).

The spelling of 22724200025 in words is "twenty-two billion, seven hundred twenty-four million, two hundred thousand, twenty-five".