25044216543 has 12 divisors (see below), whose sum is σ = 37341914688. Its totient is φ = 16157558880.

The previous prime is 25044216523. The next prime is 25044216557. The reversal of 25044216543 is 34561244052.

25044216543 is a `hidden beast` number, since 2 + 50 + 44 + 21 + 6 + 543 = 666.

It is not a de Polignac number, because 25044216543 - 2⁶ = 25044216479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25044216498 and 25044216507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25044216523) 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 11 ways as a sum of consecutive naturals, for example, 44881830 + ... + 44882387.

It is an arithmetic number, because the mean of its divisors is an integer number (3111826224).

Almost surely, 2^25044216543 is an apocalyptic number.

25044216543 is a deficient number, since it is larger than the sum of its proper divisors (12297698145).

25044216543 is a wasteful number, since it uses less digits than its factorization.

25044216543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89764254 (or 89764251 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 25044216543 in words is "twenty-five billion, forty-four million, two hundred sixteen thousand, five hundred forty-three".