556782379 has 2 divisors, whose sum is σ = 556782380. Its totient is φ = 556782378.

The previous prime is 556782377. The next prime is 556782389. The reversal of 556782379 is 973287655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556782379 - 2¹ = 556782377 is a prime.

Together with 556782377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (556782377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278391189 + 278391190.

It is an arithmetic number, because the mean of its divisors is an integer number (278391190).

Almost surely, 2^556782379 is an apocalyptic number.

556782379 is a deficient number, since it is larger than the sum of its proper divisors (1).

556782379 is an equidigital number, since it uses as much as digits as its factorization.

556782379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The square root of 556782379 is about 23596.2365431439. The cubic root of 556782379 is about 822.6753679213.

The spelling of 556782379 in words is "five hundred fifty-six million, seven hundred eighty-two thousand, three hundred seventy-nine".