25020054533 has 4 divisors (see below), whose sum is σ = 25026237900. Its totient is φ = 25013871168.

The previous prime is 25020054517. The next prime is 25020054547. The reversal of 25020054533 is 33545002052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6151735489 + 18868319044 = 78433^2 + 137362^2 .

It is a cyclic number.

It is not a de Polignac number, because 25020054533 - 2⁴ = 25020054517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25020054496 and 25020054505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25020054583) 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 3 ways as a sum of consecutive naturals, for example, 3085610 + ... + 3093707.

It is an arithmetic number, because the mean of its divisors is an integer number (6256559475).

Almost surely, 2^25020054533 is an apocalyptic number.

It is an amenable number.

25020054533 is a deficient number, since it is larger than the sum of its proper divisors (6183367).

25020054533 is an equidigital number, since it uses as much as digits as its factorization.

25020054533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183366.

The product of its (nonzero) digits is 18000, while the sum is 29.

Adding to 25020054533 its reverse (33545002052), we get a palindrome (58565056585).

The spelling of 25020054533 in words is "twenty-five billion, twenty million, fifty-four thousand, five hundred thirty-three".