55333565 has 8 divisors (see below), whose sum is σ = 75886080. Its totient is φ = 37942992.

The previous prime is 55333549. The next prime is 55333571. The reversal of 55333565 is 56533355.

55333565 is nontrivially palindromic in base 6.

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 55333565 - 2⁴ = 55333549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1580959 = 55333565 / (5 + 5 + 3 + 3 + 3 + 5 + 6 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790445 + ... + 790514.

It is an arithmetic number, because the mean of its divisors is an integer number (9485760).

Almost surely, 2^55333565 is an apocalyptic number.

It is an amenable number.

55333565 is a deficient number, since it is larger than the sum of its proper divisors (20552515).

55333565 is a wasteful number, since it uses less digits than its factorization.

55333565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580971.

The product of its digits is 101250, while the sum is 35.

The square root of 55333565 is about 7438.6534399715. The cubic root of 55333565 is about 381.0625042408.

The spelling of 55333565 in words is "fifty-five million, three hundred thirty-three thousand, five hundred sixty-five".