56664126 has 24 divisors (see below), whose sum is σ = 123560424. Its totient is φ = 18766800.

The previous prime is 56664121. The next prime is 56664143. The reversal of 56664126 is 62146665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56664121) 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 11 ways as a sum of consecutive naturals, for example, 7200 + ... + 12851.

It is an arithmetic number, because the mean of its divisors is an integer number (5148351).

Almost surely, 2^56664126 is an apocalyptic number.

56664126 is an abundant number, since it is smaller than the sum of its proper divisors (66896298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56664126 is a wasteful number, since it uses less digits than its factorization.

56664126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20216 (or 20213 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 56664126 is about 7527.5577712828. The cubic root of 56664126 is about 384.0927103622.

The spelling of 56664126 in words is "fifty-six million, six hundred sixty-four thousand, one hundred twenty-six".