55225333 has 4 divisors (see below), whose sum is σ = 58473900. Its totient is φ = 51976768.

The previous prime is 55225327. The next prime is 55225337. The reversal of 55225333 is 33352255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33352255 = 5 ⋅6670451.

It can be written as a sum of positive squares in 2 ways, for example, as 40030929 + 15194404 = 6327^2 + 3898^2 .

It is a cyclic number.

It is not a de Polignac number, because 55225333 - 2⁹ = 55224821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55225337) 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, 1624258 + ... + 1624291.

It is an arithmetic number, because the mean of its divisors is an integer number (14618475).

Almost surely, 2^55225333 is an apocalyptic number.

It is an amenable number.

55225333 is a deficient number, since it is larger than the sum of its proper divisors (3248567).

55225333 is a wasteful number, since it uses less digits than its factorization.

55225333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248566.

The product of its digits is 13500, while the sum is 28.

The square root of 55225333 is about 7431.3749064356. The cubic root of 55225333 is about 380.8138903622.

Adding to 55225333 its reverse (33352255), we get a palindrome (88577588).

The spelling of 55225333 in words is "fifty-five million, two hundred twenty-five thousand, three hundred thirty-three".