656424031 has 2 divisors, whose sum is σ = 656424032. Its totient is φ = 656424030.

The previous prime is 656424001. The next prime is 656424049. The reversal of 656424031 is 130424656.

656424031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 656424031 - 2¹³ = 656415839 is a prime.

It is a super-2 number, since 2×656424031² = 861785016948577922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 656423984 and 656424002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656424001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328212015 + 328212016.

It is an arithmetic number, because the mean of its divisors is an integer number (328212016).

Almost surely, 2^656424031 is an apocalyptic number.

656424031 is a deficient number, since it is larger than the sum of its proper divisors (1).

656424031 is an equidigital number, since it uses as much as digits as its factorization.

656424031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 656424031 is about 25620.7734270455. The cubic root of 656424031 is about 869.0834717520.

Adding to 656424031 its reverse (130424656), we get a palindrome (786848687).

It can be divided in two parts, 65642403 and 1, that added together give a square (65642404 = 8102²).

The spelling of 656424031 in words is "six hundred fifty-six million, four hundred twenty-four thousand, thirty-one".