55053313 has 24 divisors (see below), whose sum is σ = 66074400. Its totient is φ = 45718848.

The previous prime is 55053311. The next prime is 55053337. The reversal of 55053313 is 31335055.

It is a happy number.

It is not a de Polignac number, because 55053313 - 2¹ = 55053311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55053311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395998 + ... + 396136.

It is an arithmetic number, because the mean of its divisors is an integer number (2753100).

Almost surely, 2^55053313 is an apocalyptic number.

It is an amenable number.

55053313 is a deficient number, since it is larger than the sum of its proper divisors (11021087).

55053313 is a wasteful number, since it uses less digits than its factorization.

55053313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 55053313 is about 7419.7919782161. The cubic root of 55053313 is about 380.4180832461.

Adding to 55053313 its reverse (31335055), we get a palindrome (86388368).

The spelling of 55053313 in words is "fifty-five million, fifty-three thousand, three hundred thirteen".