55235731 has 2 divisors, whose sum is σ = 55235732. Its totient is φ = 55235730.

The previous prime is 55235723. The next prime is 55235743. The reversal of 55235731 is 13753255.

55235731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55235731 - 2³ = 55235723 is a prime.

It is a super-2 number, since 2×55235731² = 6101971958208722, which contains 22 as substring.

It is equal to p_3295480 and since 55235731 and 3295480 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 55235693 and 55235702.

It is not a weakly prime, because it can be changed into another prime (55235711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27617865 + 27617866.

It is an arithmetic number, because the mean of its divisors is an integer number (27617866).

Almost surely, 2^55235731 is an apocalyptic number.

55235731 is a deficient number, since it is larger than the sum of its proper divisors (1).

55235731 is an equidigital number, since it uses as much as digits as its factorization.

55235731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15750, while the sum is 31.

The square root of 55235731 is about 7432.0744748690. The cubic root of 55235731 is about 380.8377891427.

Adding to 55235731 its reverse (13753255), we get a palindrome (68988986).

The spelling of 55235731 in words is "fifty-five million, two hundred thirty-five thousand, seven hundred thirty-one".