2548981775 has 12 divisors (see below), whose sum is σ = 3180133512. Its totient is φ = 2026671840.

The previous prime is 2548981759. The next prime is 2548981781. The reversal of 2548981775 is 5771898452.

It is not a de Polignac number, because 2548981775 - 2⁴ = 2548981759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2548981775.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 308684 + ... + 316833.

It is an arithmetic number, because the mean of its divisors is an integer number (265011126).

Almost surely, 2^2548981775 is an apocalyptic number.

2548981775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2548981775 is a deficient number, since it is larger than the sum of its proper divisors (631151737).

2548981775 is a wasteful number, since it uses less digits than its factorization.

2548981775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625690 (or 625685 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 56.

The square root of 2548981775 is about 50487.4417553514. The cubic root of 2548981775 is about 1366.0153412041.

The spelling of 2548981775 in words is "two billion, five hundred forty-eight million, nine hundred eighty-one thousand, seven hundred seventy-five".