25305223043 has 8 divisors (see below), whose sum is σ = 25657895088. Its totient is φ = 24952713984.

The previous prime is 25305222989. The next prime is 25305223079. The reversal of 25305223043 is 34032250352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25305223043 - 2¹⁸ = 25304960899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25305222997 and 25305223015.

It is not an unprimeable number, because it can be changed into a prime (25305228043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290555 + ... + 367467.

It is an arithmetic number, because the mean of its divisors is an integer number (3207236886).

Almost surely, 2^25305223043 is an apocalyptic number.

25305223043 is a deficient number, since it is larger than the sum of its proper divisors (352672045).

25305223043 is an equidigital number, since it uses as much as digits as its factorization.

25305223043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81493.

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 25305223043 its reverse (34032250352), we get a palindrome (59337473395).

The spelling of 25305223043 in words is "twenty-five billion, three hundred five million, two hundred twenty-three thousand, forty-three".