2551365847 has 4 divisors (see below), whose sum is σ = 2685648280. Its totient is φ = 2417083416.

The previous prime is 2551365833. The next prime is 2551365853. The reversal of 2551365847 is 7485631552.

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 2551365847 - 2¹⁵ = 2551333079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551365797 and 2551365806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551365347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67141188 + ... + 67141225.

It is an arithmetic number, because the mean of its divisors is an integer number (671412070).

Almost surely, 2^2551365847 is an apocalyptic number.

2551365847 is a deficient number, since it is larger than the sum of its proper divisors (134282433).

2551365847 is a wasteful number, since it uses less digits than its factorization.

2551365847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134282432.

The product of its digits is 1008000, while the sum is 46.

The square root of 2551365847 is about 50511.0467818674. The cubic root of 2551365847 is about 1366.4410882165.

The spelling of 2551365847 in words is "two billion, five hundred fifty-one million, three hundred sixty-five thousand, eight hundred forty-seven".