56503933 has 4 divisors (see below), whose sum is σ = 56523328. Its totient is φ = 56484540.

The previous prime is 56503927. The next prime is 56503943. The reversal of 56503933 is 33930565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56503933 - 2¹⁷ = 56372861 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 (56503943) 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, 4341 + ... + 11482.

It is an arithmetic number, because the mean of its divisors is an integer number (14130832).

Almost surely, 2^56503933 is an apocalyptic number.

It is an amenable number.

56503933 is a deficient number, since it is larger than the sum of its proper divisors (19395).

56503933 is a wasteful number, since it uses less digits than its factorization.

56503933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19394.

The product of its (nonzero) digits is 36450, while the sum is 34.

The square root of 56503933 is about 7516.9098039021. The cubic root of 56503933 is about 383.7304174313.

The spelling of 56503933 in words is "fifty-six million, five hundred three thousand, nine hundred thirty-three".