556945402 has 8 divisors (see below), whose sum is σ = 899681076. Its totient is φ = 257051712.

The previous prime is 556945393. The next prime is 556945421. The reversal of 556945402 is 204549655.

It can be written as a sum of positive squares in 2 ways, for example, as 543775761 + 13169641 = 23319^2 + 3629^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10710463 + ... + 10710514.

Almost surely, 2^556945402 is an apocalyptic number.

556945402 is a deficient number, since it is larger than the sum of its proper divisors (342735674).

556945402 is a wasteful number, since it uses less digits than its factorization.

556945402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21420992.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 556945402 is about 23599.6907183124. The cubic root of 556945402 is about 822.7556517834.

The spelling of 556945402 in words is "five hundred fifty-six million, nine hundred forty-five thousand, four hundred two".