25300045543 has 4 divisors (see below), whose sum is σ = 25304320080. Its totient is φ = 25295771008.

The previous prime is 25300045453. The next prime is 25300045571. The reversal of 25300045543 is 34554000352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25300045543 - 2¹³ = 25300037351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25300045343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128378 + ... + 2140231.

It is an arithmetic number, because the mean of its divisors is an integer number (6326080020).

Almost surely, 2^25300045543 is an apocalyptic number.

25300045543 is a deficient number, since it is larger than the sum of its proper divisors (4274537).

25300045543 is an equidigital number, since it uses as much as digits as its factorization.

25300045543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274536.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 25300045543 its reverse (34554000352), we get a palindrome (59854045895).

The spelling of 25300045543 in words is "twenty-five billion, three hundred million, forty-five thousand, five hundred forty-three".