2548563871 has 4 divisors (see below), whose sum is σ = 2912644432. Its totient is φ = 2184483312.

The previous prime is 2548563869. The next prime is 2548563893. The reversal of 2548563871 is 1783658452.

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 2548563871 - 2¹ = 2548563869 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 (2548563821) 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, 182040270 + ... + 182040283.

It is an arithmetic number, because the mean of its divisors is an integer number (728161108).

Almost surely, 2^2548563871 is an apocalyptic number.

2548563871 is a deficient number, since it is larger than the sum of its proper divisors (364080561).

2548563871 is an equidigital number, since it uses as much as digits as its factorization.

2548563871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364080560.

The product of its digits is 1612800, while the sum is 49.

The square root of 2548563871 is about 50483.3028931349. The cubic root of 2548563871 is about 1365.9406846646.

The spelling of 2548563871 in words is "two billion, five hundred forty-eight million, five hundred sixty-three thousand, eight hundred seventy-one".