556140385 has 8 divisors (see below), whose sum is σ = 667497600. Its totient is φ = 444826224.

The previous prime is 556140383. The next prime is 556140407. The reversal of 556140385 is 583041655.

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 556140385 - 2¹ = 556140383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556140383) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 36666 + ... + 49564.

It is an arithmetic number, because the mean of its divisors is an integer number (83437200).

Almost surely, 2^556140385 is an apocalyptic number.

It is an amenable number.

556140385 is a deficient number, since it is larger than the sum of its proper divisors (111357215).

556140385 is a wasteful number, since it uses less digits than its factorization.

556140385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21527.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 556140385 is about 23582.6288822938. The cubic root of 556140385 is about 822.3590529692.

The spelling of 556140385 in words is "five hundred fifty-six million, one hundred forty thousand, three hundred eighty-five".