55733290565 has 4 divisors (see below), whose sum is σ = 66879948684. Its totient is φ = 44586632448.

The previous prime is 55733290553. The next prime is 55733290567. The reversal of 55733290565 is 56509233755.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43421390884 + 12311899681 = 208378^2 + 110959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55733290565 is a prime.

It is a super-3 number, since 3×55733290565³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55733290567) 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, 5573329052 + ... + 5573329061.

It is an arithmetic number, because the mean of its divisors is an integer number (16719987171).

Almost surely, 2^55733290565 is an apocalyptic number.

It is an amenable number.

55733290565 is a deficient number, since it is larger than the sum of its proper divisors (11146658119).

55733290565 is a wasteful number, since it uses less digits than its factorization.

55733290565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146658118.

The product of its (nonzero) digits is 4252500, while the sum is 50.

The spelling of 55733290565 in words is "fifty-five billion, seven hundred thirty-three million, two hundred ninety thousand, five hundred sixty-five".