557240863 has 2 divisors, whose sum is σ = 557240864. Its totient is φ = 557240862.

The previous prime is 557240851. The next prime is 557240891. The reversal of 557240863 is 368042755.

557240863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557240863 - 2⁹ = 557240351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557240813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278620431 + 278620432.

It is an arithmetic number, because the mean of its divisors is an integer number (278620432).

Almost surely, 2^557240863 is an apocalyptic number.

557240863 is a deficient number, since it is larger than the sum of its proper divisors (1).

557240863 is an equidigital number, since it uses as much as digits as its factorization.

557240863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 557240863 is about 23605.9497373014. The cubic root of 557240863 is about 822.9011174086.

The spelling of 557240863 in words is "five hundred fifty-seven million, two hundred forty thousand, eight hundred sixty-three".