55145567233 has 8 divisors (see below), whose sum is σ = 55232018568. Its totient is φ = 55059185664.

The previous prime is 55145567219. The next prime is 55145567287. The reversal of 55145567233 is 33276554155.

It can be written as a sum of positive squares in 4 ways, for example, as 10585734769 + 44559832464 = 102887^2 + 211092^2 .

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 55145567233 - 2⁵ = 55145567201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55145567203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693441 + ... + 1725697.

It is an arithmetic number, because the mean of its divisors is an integer number (6904002321).

Almost surely, 2^55145567233 is an apocalyptic number.

It is an amenable number.

55145567233 is a deficient number, since it is larger than the sum of its proper divisors (86451335).

55145567233 is a wasteful number, since it uses less digits than its factorization.

55145567233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34883.

The product of its digits is 1890000, while the sum is 46.

The spelling of 55145567233 in words is "fifty-five billion, one hundred forty-five million, five hundred sixty-seven thousand, two hundred thirty-three".