56305031 has 4 divisors (see below), whose sum is σ = 56678064. Its totient is φ = 55932000.

The previous prime is 56305019. The next prime is 56305033. The reversal of 56305031 is 13050365.

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 56305031 - 2¹⁰ = 56304007 is a prime.

It is a super-2 number, since 2×56305031² = 6340513031821922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56304988 and 56305006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56305033) 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, 186290 + ... + 186591.

It is an arithmetic number, because the mean of its divisors is an integer number (14169516).

Almost surely, 2^56305031 is an apocalyptic number.

56305031 is a deficient number, since it is larger than the sum of its proper divisors (373033).

56305031 is a wasteful number, since it uses less digits than its factorization.

56305031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373032.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 56305031 is about 7503.6678364650. The cubic root of 56305031 is about 383.2796259140.

Adding to 56305031 its reverse (13050365), we get a palindrome (69355396).

It can be divided in two parts, 5 and 6305031, that added together give a palindrome (6305036).

The spelling of 56305031 in words is "fifty-six million, three hundred five thousand, thirty-one".