556051019 has 2 divisors, whose sum is σ = 556051020. Its totient is φ = 556051018.

The previous prime is 556050991. The next prime is 556051021. The reversal of 556051019 is 910150655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556051019 - 2²⁸ = 287615563 is a prime.

It is a super-2 number, since 2×556051019² = 618385471461876722, which contains 22 as substring.

Together with 556051021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (556051099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278025509 + 278025510.

It is an arithmetic number, because the mean of its divisors is an integer number (278025510).

Almost surely, 2^556051019 is an apocalyptic number.

556051019 is a deficient number, since it is larger than the sum of its proper divisors (1).

556051019 is an equidigital number, since it uses as much as digits as its factorization.

556051019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 556051019 is about 23580.7340640617. The cubic root of 556051019 is about 822.3150024154.

The spelling of 556051019 in words is "five hundred fifty-six million, fifty-one thousand, nineteen".