2539625543 has 24 divisors (see below), whose sum is σ = 3169702368. Its totient is φ = 1981469952.

The previous prime is 2539625533. The next prime is 2539625551. The reversal of 2539625543 is 3455269352.

It is not a de Polignac number, because 2539625543 - 2¹⁰ = 2539624519 is a prime.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 2539625494 and 2539625503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539625533) 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 23 ways as a sum of consecutive naturals, for example, 482321 + ... + 487557.

It is an arithmetic number, because the mean of its divisors is an integer number (132070932).

Almost surely, 2^2539625543 is an apocalyptic number.

2539625543 is a deficient number, since it is larger than the sum of its proper divisors (630076825).

2539625543 is an equidigital number, since it uses as much as digits as its factorization.

2539625543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403 (or 5330 counting only the distinct ones).

The product of its digits is 972000, while the sum is 44.

The square root of 2539625543 is about 50394.6975682958. The cubic root of 2539625543 is about 1364.3419375833.

The spelling of 2539625543 in words is "two billion, five hundred thirty-nine million, six hundred twenty-five thousand, five hundred forty-three".