56512303 has 4 divisors (see below), whose sum is σ = 56537008. Its totient is φ = 56487600.

The previous prime is 56512243. The next prime is 56512343. The reversal of 56512303 is 30321565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56512303 - 2¹³ = 56504111 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 (56512343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8526 + ... + 13627.

It is an arithmetic number, because the mean of its divisors is an integer number (14134252).

Almost surely, 2^56512303 is an apocalyptic number.

56512303 is a deficient number, since it is larger than the sum of its proper divisors (24705).

56512303 is a wasteful number, since it uses less digits than its factorization.

56512303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24704.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 56512303 is about 7517.4665280266. The cubic root of 56512303 is about 383.7493639887.

Adding to 56512303 its reverse (30321565), we get a palindrome (86833868).

The spelling of 56512303 in words is "fifty-six million, five hundred twelve thousand, three hundred three".