556867403 has 2 divisors, whose sum is σ = 556867404. Its totient is φ = 556867402.

The previous prime is 556867379. The next prime is 556867411. The reversal of 556867403 is 304768655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556867403 - 2²⁶ = 489758539 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (556867463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278433701 + 278433702.

It is an arithmetic number, because the mean of its divisors is an integer number (278433702).

Almost surely, 2^556867403 is an apocalyptic number.

556867403 is a deficient number, since it is larger than the sum of its proper divisors (1).

556867403 is an equidigital number, since it uses as much as digits as its factorization.

556867403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 556867403 is about 23598.0381176063. The cubic root of 556867403 is about 822.7172416065.

The spelling of 556867403 in words is "five hundred fifty-six million, eight hundred sixty-seven thousand, four hundred three".