5656242123 has 16 divisors (see below), whose sum is σ = 9576706560. Its totient is φ = 3232138248.

The previous prime is 5656242121. The next prime is 5656242127. The reversal of 5656242123 is 3212426565.

5656242123 is a `hidden beast` number, since 5 + 6 + 5 + 624 + 2 + 1 + 23 = 666.

It is not a de Polignac number, because 5656242123 - 2¹ = 5656242121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5656242121) 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, 14963415 + ... + 14963792.

It is an arithmetic number, because the mean of its divisors is an integer number (598544160).

Almost surely, 2^5656242123 is an apocalyptic number.

5656242123 is a deficient number, since it is larger than the sum of its proper divisors (3920464437).

5656242123 is a wasteful number, since it uses less digits than its factorization.

5656242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29927223 (or 29927217 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 5656242123 is about 75207.9924143704. The cubic root of 5656242123 is about 1781.7331647079.

Adding to 5656242123 its reverse (3212426565), we get a palindrome (8868668688).

The spelling of 5656242123 in words is "five billion, six hundred fifty-six million, two hundred forty-two thousand, one hundred twenty-three".