55315333 has 4 divisors (see below), whose sum is σ = 56810380. Its totient is φ = 53820288.

The previous prime is 55315307. The next prime is 55315343. The reversal of 55315333 is 33351355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33351355 = 5 ⋅6670271.

It can be written as a sum of positive squares in 2 ways, for example, as 36505764 + 18809569 = 6042^2 + 4337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55315333 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 (55315343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747468 + ... + 747541.

It is an arithmetic number, because the mean of its divisors is an integer number (14202595).

Almost surely, 2^55315333 is an apocalyptic number.

It is an amenable number.

55315333 is a deficient number, since it is larger than the sum of its proper divisors (1495047).

55315333 is a wasteful number, since it uses less digits than its factorization.

55315333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495046.

The product of its digits is 10125, while the sum is 28.

The square root of 55315333 is about 7437.4278483895. The cubic root of 55315333 is about 381.0206472187.

Adding to 55315333 its reverse (33351355), we get a palindrome (88666688).

The spelling of 55315333 in words is "fifty-five million, three hundred fifteen thousand, three hundred thirty-three".