556154047 has 2 divisors, whose sum is σ = 556154048. Its totient is φ = 556154046.

The previous prime is 556154041. The next prime is 556154057. The reversal of 556154047 is 740451655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556154047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556153997 and 556154015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556154041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278077023 + 278077024.

It is an arithmetic number, because the mean of its divisors is an integer number (278077024).

Almost surely, 2^556154047 is an apocalyptic number.

556154047 is a deficient number, since it is larger than the sum of its proper divisors (1).

556154047 is an equidigital number, since it uses as much as digits as its factorization.

556154047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 556154047 is about 23582.9185428776. The cubic root of 556154047 is about 822.3657868669.

The spelling of 556154047 in words is "five hundred fifty-six million, one hundred fifty-four thousand, forty-seven".