556344731 has 4 divisors (see below), whose sum is σ = 556479264. Its totient is φ = 556210200.

The previous prime is 556344727. The next prime is 556344743. The reversal of 556344731 is 137443655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137443655 = 5 ⋅27488731.

It is a cyclic number.

It is not a de Polignac number, because 556344731 - 2² = 556344727 is a prime.

It is a super-2 number, since 2×556344731² = 619038919422924722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556344721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60860 + ... + 69401.

It is an arithmetic number, because the mean of its divisors is an integer number (139119816).

Almost surely, 2^556344731 is an apocalyptic number.

556344731 is a deficient number, since it is larger than the sum of its proper divisors (134533).

556344731 is a wasteful number, since it uses less digits than its factorization.

556344731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134532.

The product of its digits is 151200, while the sum is 38.

The square root of 556344731 is about 23586.9610378277. The cubic root of 556344731 is about 822.4597620766.

The spelling of 556344731 in words is "five hundred fifty-six million, three hundred forty-four thousand, seven hundred thirty-one".