56666422 has 8 divisors (see below), whose sum is σ = 85356000. Its totient is φ = 28214424.

The previous prime is 56666413. The next prime is 56666429. The reversal of 56666422 is 22466665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56666422² = 6422166764564168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56666429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58797 + ... + 59752.

It is an arithmetic number, because the mean of its divisors is an integer number (10669500).

Almost surely, 2^56666422 is an apocalyptic number.

56666422 is a deficient number, since it is larger than the sum of its proper divisors (28689578).

56666422 is a wasteful number, since it uses less digits than its factorization.

56666422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118790.

The product of its digits is 103680, while the sum is 37.

The square root of 56666422 is about 7527.7102760401. The cubic root of 56666422 is about 384.0978980357.

The spelling of 56666422 in words is "fifty-six million, six hundred sixty-six thousand, four hundred twenty-two".