2547288427 has 4 divisors (see below), whose sum is σ = 2559361096. Its totient is φ = 2535215760.

The previous prime is 2547288407. The next prime is 2547288431. The reversal of 2547288427 is 7248827452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2547288427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2547288407) 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 3 ways as a sum of consecutive naturals, for example, 6036018 + ... + 6036439.

It is an arithmetic number, because the mean of its divisors is an integer number (639840274).

Almost surely, 2^2547288427 is an apocalyptic number.

2547288427 is a deficient number, since it is larger than the sum of its proper divisors (12072669).

2547288427 is a wasteful number, since it uses less digits than its factorization.

2547288427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12072668.

The product of its digits is 2007040, while the sum is 49.

The square root of 2547288427 is about 50470.6689771396. The cubic root of 2547288427 is about 1365.7127822527.

The spelling of 2547288427 in words is "two billion, five hundred forty-seven million, two hundred eighty-eight thousand, four hundred twenty-seven".