556978106 has 16 divisors (see below), whose sum is σ = 903436416. Its totient is φ = 256529856.

The previous prime is 556978069. The next prime is 556978111. The reversal of 556978106 is 601879655.

It is a super-2 number, since 2×556978106² = 620449221126694472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172676 + ... + 175871.

It is an arithmetic number, because the mean of its divisors is an integer number (56464776).

Almost surely, 2^556978106 is an apocalyptic number.

556978106 is a deficient number, since it is larger than the sum of its proper divisors (346458310).

556978106 is a wasteful number, since it uses less digits than its factorization.

556978106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348613.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 556978106 is about 23600.3835985774. The cubic root of 556978106 is about 822.7717556205.

The spelling of 556978106 in words is "five hundred fifty-six million, nine hundred seventy-eight thousand, one hundred six".