55000233 has 24 divisors (see below), whose sum is σ = 81214848. Its totient is φ = 35858592.

The previous prime is 55000207. The next prime is 55000243. The reversal of 55000233 is 33200055.

It is not a de Polignac number, because 55000233 - 2¹⁴ = 54983849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55000243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118560 + ... + 119022.

It is an arithmetic number, because the mean of its divisors is an integer number (3383952).

Almost surely, 2^55000233 is an apocalyptic number.

It is an amenable number.

55000233 is a deficient number, since it is larger than the sum of its proper divisors (26214615).

55000233 is a wasteful number, since it uses less digits than its factorization.

55000233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 55000233 is about 7416.2141959358. The cubic root of 55000233 is about 380.2957830984.

Adding to 55000233 its reverse (33200055), we get a palindrome (88200288).

The spelling of 55000233 in words is "fifty-five million, two hundred thirty-three", and thus it is an aban number.