55206652331 has 4 divisors (see below), whose sum is σ = 55274725464. Its totient is φ = 55138579200.

The previous prime is 55206652327. The next prime is 55206652357. The reversal of 55206652331 is 13325660255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13325660255 = 5 ⋅2665132051.

It is a cyclic number.

It is not a de Polignac number, because 55206652331 - 2² = 55206652327 is a prime.

It is a super-2 number, since 2×55206652331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55206652321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34035350 + ... + 34036971.

It is an arithmetic number, because the mean of its divisors is an integer number (13818681366).

Almost surely, 2^55206652331 is an apocalyptic number.

55206652331 is a deficient number, since it is larger than the sum of its proper divisors (68073133).

55206652331 is an equidigital number, since it uses as much as digits as its factorization.

55206652331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68073132.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 55206652331 in words is "fifty-five billion, two hundred six million, six hundred fifty-two thousand, three hundred thirty-one".