55512303 has 32 divisors (see below), whose sum is σ = 92897280. Its totient is φ = 28644960.

The previous prime is 55512299. The next prime is 55512329. The reversal of 55512303 is 30321555.

It is not a de Polignac number, because 55512303 - 2² = 55512299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55512703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37858 + ... + 39296.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^55512303 is an apocalyptic number.

55512303 is a deficient number, since it is larger than the sum of its proper divisors (37384977).

55512303 is a wasteful number, since it uses less digits than its factorization.

55512303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55512303 is about 7450.6578904148. The cubic root of 55512303 is about 381.4723648424.

Adding to 55512303 its reverse (30321555), we get a palindrome (85833858).

The spelling of 55512303 in words is "fifty-five million, five hundred twelve thousand, three hundred three".