55871653 has 2 divisors, whose sum is σ = 55871654. Its totient is φ = 55871652.

The previous prime is 55871633. The next prime is 55871701. The reversal of 55871653 is 35617855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48678529 + 7193124 = 6977^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 55871653 - 2⁹ = 55871141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55871633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27935826 + 27935827.

It is an arithmetic number, because the mean of its divisors is an integer number (27935827).

Almost surely, 2^55871653 is an apocalyptic number.

It is an amenable number.

55871653 is a deficient number, since it is larger than the sum of its proper divisors (1).

55871653 is an equidigital number, since it uses as much as digits as its factorization.

55871653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 40.

The square root of 55871653 is about 7474.7343096594. The cubic root of 55871653 is about 382.2937284748.

The spelling of 55871653 in words is "fifty-five million, eight hundred seventy-one thousand, six hundred fifty-three".