56669826 has 16 divisors (see below), whose sum is σ = 115478784. Its totient is φ = 18533424.

The previous prime is 56669819. The next prime is 56669849. The reversal of 56669826 is 62896665.

It is a super-2 number, since 2×56669826² = 6422938357740552, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88786 + ... + 89421.

It is an arithmetic number, because the mean of its divisors is an integer number (7217424).

Almost surely, 2^56669826 is an apocalyptic number.

56669826 is an abundant number, since it is smaller than the sum of its proper divisors (58808958).

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

56669826 is a wasteful number, since it uses less digits than its factorization.

56669826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178265.

The product of its digits is 933120, while the sum is 48.

The square root of 56669826 is about 7527.9363706131. The cubic root of 56669826 is about 384.1055889105.

The spelling of 56669826 in words is "fifty-six million, six hundred sixty-nine thousand, eight hundred twenty-six".