556706249 has 8 divisors (see below), whose sum is σ = 615636192. Its totient is φ = 499163040.

The previous prime is 556706239. The next prime is 556706257. The reversal of 556706249 is 942607655.

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

It is a cyclic number.

It is not a de Polignac number, because 556706249 - 2²⁰ = 555657673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556706219) 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, 345839 + ... + 347444.

It is an arithmetic number, because the mean of its divisors is an integer number (76954524).

Almost surely, 2^556706249 is an apocalyptic number.

It is an amenable number.

556706249 is a deficient number, since it is larger than the sum of its proper divisors (58929943).

556706249 is a wasteful number, since it uses less digits than its factorization.

556706249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693367.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 556706249 is about 23594.6233070164. The cubic root of 556706249 is about 822.6378708471.

The spelling of 556706249 in words is "five hundred fifty-six million, seven hundred six thousand, two hundred forty-nine".