55731413 has 2 divisors, whose sum is σ = 55731414. Its totient is φ = 55731412.

The previous prime is 55731409. The next prime is 55731433. The reversal of 55731413 is 31413755.

55731413 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 can be written as a sum of positive squares in only one way, i.e., 50794129 + 4937284 = 7127^2 + 2222^2 .

It is a cyclic number.

It is not a de Polignac number, because 55731413 - 2² = 55731409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55731433) 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, 27865706 + 27865707.

It is an arithmetic number, because the mean of its divisors is an integer number (27865707).

Almost surely, 2^55731413 is an apocalyptic number.

It is an amenable number.

55731413 is a deficient number, since it is larger than the sum of its proper divisors (1).

55731413 is an equidigital number, since it uses as much as digits as its factorization.

55731413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 29.

The square root of 55731413 is about 7465.3474801914. The cubic root of 55731413 is about 381.9736031576.

The spelling of 55731413 in words is "fifty-five million, seven hundred thirty-one thousand, four hundred thirteen".