556516141 has 2 divisors, whose sum is σ = 556516142. Its totient is φ = 556516140.

The previous prime is 556516139. The next prime is 556516183. The reversal of 556516141 is 141615655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359254116 + 197262025 = 18954^2 + 14045^2 .

It is a cyclic number.

It is not a de Polignac number, because 556516141 - 2¹ = 556516139 is a prime.

Together with 556516139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 556516097 and 556516106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556516241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278258070 + 278258071.

It is an arithmetic number, because the mean of its divisors is an integer number (278258071).

Almost surely, 2^556516141 is an apocalyptic number.

It is an amenable number.

556516141 is a deficient number, since it is larger than the sum of its proper divisors (1).

556516141 is an equidigital number, since it uses as much as digits as its factorization.

556516141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 34.

The square root of 556516141 is about 23590.5943333355. The cubic root of 556516141 is about 822.5442201137.

The spelling of 556516141 in words is "five hundred fifty-six million, five hundred sixteen thousand, one hundred forty-one".