56553123 has 16 divisors (see below), whose sum is σ = 82857600. Its totient is φ = 34025280.

The previous prime is 56553121. The next prime is 56553137. The reversal of 56553123 is 32135565.

It is not a de Polignac number, because 56553123 - 2¹ = 56553121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56553121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (5178600).

Almost surely, 2^56553123 is an apocalyptic number.

56553123 is a deficient number, since it is larger than the sum of its proper divisors (26304477).

56553123 is a wasteful number, since it uses less digits than its factorization.

56553123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12482.

The product of its digits is 13500, while the sum is 30.

The square root of 56553123 is about 7520.1810483525. The cubic root of 56553123 is about 383.8417384398.

Adding to 56553123 its reverse (32135565), we get a palindrome (88688688).

It can be divided in two parts, 5655 and 3123, that added together give a palindrome (8778).

The spelling of 56553123 in words is "fifty-six million, five hundred fifty-three thousand, one hundred twenty-three".