55233011 has 4 divisors (see below), whose sum is σ = 55348800. Its totient is φ = 55117224.

The previous prime is 55233007. The next prime is 55233043. The reversal of 55233011 is 11033255.

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

It is a cyclic number.

It is not a de Polignac number, because 55233011 - 2² = 55233007 is a prime.

It is a super-2 number, since 2×55233011² = 6101371008252242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55233001) 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, 57176 + ... + 58133.

It is an arithmetic number, because the mean of its divisors is an integer number (13837200).

Almost surely, 2^55233011 is an apocalyptic number.

55233011 is a deficient number, since it is larger than the sum of its proper divisors (115789).

55233011 is a wasteful number, since it uses less digits than its factorization.

55233011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115788.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 55233011 is about 7431.8914819849. The cubic root of 55233011 is about 380.8315377799.

Adding to 55233011 its reverse (11033255), we get a palindrome (66266266).

The spelling of 55233011 in words is "fifty-five million, two hundred thirty-three thousand, eleven".