556863694 has 4 divisors (see below), whose sum is σ = 835295544. Its totient is φ = 278431846.

The previous prime is 556863677. The next prime is 556863701. The reversal of 556863694 is 496368655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 496368655 = 5 ⋅99273731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139215922 + ... + 139215925.

It is an arithmetic number, because the mean of its divisors is an integer number (208823886).

Almost surely, 2^556863694 is an apocalyptic number.

556863694 is a deficient number, since it is larger than the sum of its proper divisors (278431850).

556863694 is a wasteful number, since it uses less digits than its factorization.

556863694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278431849.

The product of its digits is 4665600, while the sum is 52.

The square root of 556863694 is about 23597.9595304340. The cubic root of 556863694 is about 822.7154150406.

The spelling of 556863694 in words is "five hundred fifty-six million, eight hundred sixty-three thousand, six hundred ninety-four".