25020054535 has 16 divisors (see below), whose sum is σ = 34318829376. Its totient is φ = 17153803008.

The previous prime is 25020054517. The next prime is 25020054547. The reversal of 25020054535 is 53545002052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25020054535 - 2⁷ = 25020054407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25020054497 and 25020054506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171337 + ... + 281773.

It is an arithmetic number, because the mean of its divisors is an integer number (2144926836).

Almost surely, 2^25020054535 is an apocalyptic number.

25020054535 is a deficient number, since it is larger than the sum of its proper divisors (9298774841).

25020054535 is a wasteful number, since it uses less digits than its factorization.

25020054535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116922.

The product of its (nonzero) digits is 30000, while the sum is 31.

Adding to 25020054535 its reverse (53545002052), we get a palindrome (78565056587).

The spelling of 25020054535 in words is "twenty-five billion, twenty million, fifty-four thousand, five hundred thirty-five".