556540753 has 4 divisors (see below), whose sum is σ = 556716340. Its totient is φ = 556365168.

The previous prime is 556540741. The next prime is 556540801. The reversal of 556540753 is 357045655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 357045655 = 5 ⋅71409131.

It can be written as a sum of positive squares in 2 ways, for example, as 394538769 + 162001984 = 19863^2 + 12728^2 .

It is a cyclic number.

It is not a de Polignac number, because 556540753 - 2¹⁷ = 556409681 is a prime.

It is a super-3 number, since 3×556540753³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556540253) 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 3 ways as a sum of consecutive naturals, for example, 82950 + ... + 89407.

It is an arithmetic number, because the mean of its divisors is an integer number (139179085).

Almost surely, 2^556540753 is an apocalyptic number.

It is an amenable number.

556540753 is a deficient number, since it is larger than the sum of its proper divisors (175587).

556540753 is a wasteful number, since it uses less digits than its factorization.

556540753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175586.

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 556540753 is about 23591.1159761466. The cubic root of 556540753 is about 822.5563456440.

The spelling of 556540753 in words is "five hundred fifty-six million, five hundred forty thousand, seven hundred fifty-three".