56578366 has 8 divisors (see below), whose sum is σ = 91395864. Its totient is φ = 26113080.

The previous prime is 56578349. The next prime is 56578369. The reversal of 56578366 is 66387565.

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 2×56578366² = 6402222998459912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56578369) 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, 1088020 + ... + 1088071.

It is an arithmetic number, because the mean of its divisors is an integer number (11424483).

Almost surely, 2^56578366 is an apocalyptic number.

56578366 is a deficient number, since it is larger than the sum of its proper divisors (34817498).

56578366 is a wasteful number, since it uses less digits than its factorization.

56578366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176106.

The product of its digits is 907200, while the sum is 46.

The square root of 56578366 is about 7521.8592116577. The cubic root of 56578366 is about 383.8988403598.

The spelling of 56578366 in words is "fifty-six million, five hundred seventy-eight thousand, three hundred sixty-six".