23505244250549 has 2 divisors, whose sum is σ = 23505244250550. Its totient is φ = 23505244250548.

The previous prime is 23505244250507. The next prime is 23505244250557. The reversal of 23505244250549 is 94505244250532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23388975526225 + 116268724324 = 4836215^2 + 340982^2 .

It is a cyclic number.

It is not a de Polignac number, because 23505244250549 - 2¹⁶ = 23505244185013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23505244250497 and 23505244250506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23505244250849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11752622125274 + 11752622125275.

It is an arithmetic number, because the mean of its divisors is an integer number (11752622125275).

Almost surely, 2^{23505244250549} is an apocalyptic number.

It is an amenable number.

23505244250549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23505244250549 is an equidigital number, since it uses as much as digits as its factorization.

23505244250549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640000, while the sum is 50.

The spelling of 23505244250549 in words is "twenty-three trillion, five hundred five billion, two hundred forty-four million, two hundred fifty thousand, five hundred forty-nine".