556516106 has 4 divisors (see below), whose sum is σ = 834774162. Its totient is φ = 278258052.

The previous prime is 556516069. The next prime is 556516109. The reversal of 556516106 is 601615655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601615655 = 5 ⋅120323131.

It can be written as a sum of positive squares in only one way, i.e., 384512881 + 172003225 = 19609^2 + 13115^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556516109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139129025 + ... + 139129028.

Almost surely, 2^556516106 is an apocalyptic number.

556516106 is a deficient number, since it is larger than the sum of its proper divisors (278258056).

556516106 is a wasteful number, since it uses less digits than its factorization.

556516106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278258055.

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

The square root of 556516106 is about 23590.5935915144. The cubic root of 556516106 is about 822.5442028701.

The spelling of 556516106 in words is "five hundred fifty-six million, five hundred sixteen thousand, one hundred six".