2548181909 has 16 divisors (see below), whose sum is σ = 3139621632. Its totient is φ = 2013959808.

The previous prime is 2548181863. The next prime is 2548181957. The reversal of 2548181909 is 9091818452.

It is not a de Polignac number, because 2548181909 - 2¹² = 2548177813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2548181959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72032 + ... + 101414.

It is an arithmetic number, because the mean of its divisors is an integer number (196226352).

Almost surely, 2^2548181909 is an apocalyptic number.

It is an amenable number.

2548181909 is a deficient number, since it is larger than the sum of its proper divisors (591439723).

2548181909 is a wasteful number, since it uses less digits than its factorization.

2548181909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30356.

The product of its (nonzero) digits is 207360, while the sum is 47.

The square root of 2548181909 is about 50479.5196985867. The cubic root of 2548181909 is about 1365.8724418516.

The spelling of 2548181909 in words is "two billion, five hundred forty-eight million, one hundred eighty-one thousand, nine hundred nine".