55233212 has 12 divisors (see below), whose sum is σ = 100860816. Its totient is φ = 26415840.

The previous prime is 55233181. The next prime is 55233229. The reversal of 55233212 is 21233255.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300089 + ... + 300272.

It is an arithmetic number, because the mean of its divisors is an integer number (8405068).

Almost surely, 2^55233212 is an apocalyptic number.

It is an amenable number.

55233212 is a deficient number, since it is larger than the sum of its proper divisors (45627604).

55233212 is a wasteful number, since it uses less digits than its factorization.

55233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600388 (or 600386 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 55233212 is about 7431.9050047750. The cubic root of 55233212 is about 380.8319997442.

Adding to 55233212 its reverse (21233255), we get a palindrome (76466467).

The spelling of 55233212 in words is "fifty-five million, two hundred thirty-three thousand, two hundred twelve".