56503351 has 4 divisors (see below), whose sum is σ = 56611912. Its totient is φ = 56394792.

The previous prime is 56503327. The next prime is 56503367. The reversal of 56503351 is 15330565.

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 56503351 - 2⁹ = 56502839 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 (56503151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53496 + ... + 54541.

It is an arithmetic number, because the mean of its divisors is an integer number (14152978).

Almost surely, 2^56503351 is an apocalyptic number.

56503351 is a deficient number, since it is larger than the sum of its proper divisors (108561).

56503351 is a wasteful number, since it uses less digits than its factorization.

56503351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108560.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 56503351 is about 7516.8710910857. The cubic root of 56503351 is about 383.7290999309.

The spelling of 56503351 in words is "fifty-six million, five hundred three thousand, three hundred fifty-one".