556425905 has 8 divisors (see below), whose sum is σ = 763098432. Its totient is φ = 381549168.

The previous prime is 556425901. The next prime is 556425907. The reversal of 556425905 is 509524655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556425905 - 2² = 556425901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556425901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7948907 + ... + 7948976.

It is an arithmetic number, because the mean of its divisors is an integer number (95387304).

Almost surely, 2^556425905 is an apocalyptic number.

It is an amenable number.

556425905 is a deficient number, since it is larger than the sum of its proper divisors (206672527).

556425905 is a wasteful number, since it uses less digits than its factorization.

556425905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897895.

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 556425905 is about 23588.6817139068. The cubic root of 556425905 is about 822.4997607191.

The spelling of 556425905 in words is "five hundred fifty-six million, four hundred twenty-five thousand, nine hundred five".