25130555543 has 4 divisors (see below), whose sum is σ = 25130876400. Its totient is φ = 25130234688.

The previous prime is 25130555519. The next prime is 25130555557. The reversal of 25130555543 is 34555503152.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25130555543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25130555497 and 25130555506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130555503) 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, 43271 + ... + 228327.

It is an arithmetic number, because the mean of its divisors is an integer number (6282719100).

Almost surely, 2^25130555543 is an apocalyptic number.

25130555543 is a deficient number, since it is larger than the sum of its proper divisors (320857).

25130555543 is a wasteful number, since it uses less digits than its factorization.

25130555543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320856.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 25130555543 in words is "twenty-five billion, one hundred thirty million, five hundred fifty-five thousand, five hundred forty-three".