56665846 has 4 divisors (see below), whose sum is σ = 84998772. Its totient is φ = 28332922.

The previous prime is 56665841. The next prime is 56665867. The reversal of 56665846 is 64856665.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×56665846² = 6422036205791432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56665796 and 56665805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56665841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166460 + ... + 14166463.

It is an arithmetic number, because the mean of its divisors is an integer number (21249693).

Almost surely, 2^56665846 is an apocalyptic number.

56665846 is a deficient number, since it is larger than the sum of its proper divisors (28332926).

56665846 is a wasteful number, since it uses less digits than its factorization.

56665846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28332925.

The product of its digits is 1036800, while the sum is 46.

The square root of 56665846 is about 7527.6720172972. The cubic root of 56665846 is about 384.0965966116.

The spelling of 56665846 in words is "fifty-six million, six hundred sixty-five thousand, eight hundred forty-six".