56955389 has 8 divisors (see below), whose sum is σ = 60742080. Its totient is φ = 53217216.

The previous prime is 56955377. The next prime is 56955397. The reversal of 56955389 is 98355965.

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

It is a cyclic number.

It is not a de Polignac number, because 56955389 - 2⁸ = 56955133 is a prime.

It is a super-2 number, since 2×56955389² = 6487832672282642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56955319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9689 + ... + 14414.

It is an arithmetic number, because the mean of its divisors is an integer number (7592760).

Almost surely, 2^56955389 is an apocalyptic number.

It is an amenable number.

56955389 is a deficient number, since it is larger than the sum of its proper divisors (3786691).

56955389 is a wasteful number, since it uses less digits than its factorization.

56955389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24259.

The product of its digits is 1458000, while the sum is 50.

The square root of 56955389 is about 7546.8794213238. The cubic root of 56955389 is about 384.7496860556.

The spelling of 56955389 in words is "fifty-six million, nine hundred fifty-five thousand, three hundred eighty-nine".