556522019 has 4 divisors (see below), whose sum is σ = 562032240. Its totient is φ = 551011800.

The previous prime is 556521991. The next prime is 556522049. The reversal of 556522019 is 910225655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556522019 - 2²⁸ = 288086563 is a prime.

It is a super-2 number, since 2×556522019² = 619433515263672722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556522019.

It is not an unprimeable number, because it can be changed into a prime (556522049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2754959 + ... + 2755160.

It is an arithmetic number, because the mean of its divisors is an integer number (140508060).

Almost surely, 2^556522019 is an apocalyptic number.

556522019 is a deficient number, since it is larger than the sum of its proper divisors (5510221).

556522019 is a wasteful number, since it uses less digits than its factorization.

556522019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510220.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 556522019 is about 23590.7189165570. The cubic root of 556522019 is about 822.5471160452.

The spelling of 556522019 in words is "five hundred fifty-six million, five hundred twenty-two thousand, nineteen".