2563338247 has 4 divisors (see below), whose sum is σ = 2674787760. Its totient is φ = 2451888736.

The previous prime is 2563338233. The next prime is 2563338263. The reversal of 2563338247 is 7428333652.

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 2563338247 - 2³¹ = 415854599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563333247) 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, 55724722 + ... + 55724767.

It is an arithmetic number, because the mean of its divisors is an integer number (668696940).

Almost surely, 2^2563338247 is an apocalyptic number.

2563338247 is a deficient number, since it is larger than the sum of its proper divisors (111449513).

2563338247 is a wasteful number, since it uses less digits than its factorization.

2563338247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111449512.

The product of its digits is 725760, while the sum is 43.

The square root of 2563338247 is about 50629.4207650058. The cubic root of 2563338247 is about 1368.5751159505.

The spelling of 2563338247 in words is "two billion, five hundred sixty-three million, three hundred thirty-eight thousand, two hundred forty-seven".