55243533265 has 4 divisors (see below), whose sum is σ = 66292239924. Its totient is φ = 44194826608.

The previous prime is 55243533263. The next prime is 55243533281. The reversal of 55243533265 is 56233534255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56233534255 = 5 ⋅11246706851.

It can be written as a sum of positive squares in 2 ways, for example, as 40293335824 + 14950197441 = 200732^2 + 122271^2 .

It is a cyclic number.

It is not a de Polignac number, because 55243533265 - 2¹ = 55243533263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55243533263) 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, 5524353322 + ... + 5524353331.

It is an arithmetic number, because the mean of its divisors is an integer number (16573059981).

Almost surely, 2^55243533265 is an apocalyptic number.

It is an amenable number.

55243533265 is a deficient number, since it is larger than the sum of its proper divisors (11048706659).

55243533265 is a wasteful number, since it uses less digits than its factorization.

55243533265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11048706658.

The product of its digits is 1620000, while the sum is 43.

The spelling of 55243533265 in words is "fifty-five billion, two hundred forty-three million, five hundred thirty-three thousand, two hundred sixty-five".