55693789 has 2 divisors, whose sum is σ = 55693790. Its totient is φ = 55693788.

The previous prime is 55693753. The next prime is 55693829. The reversal of 55693789 is 98739655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48580900 + 7112889 = 6970^2 + 2667^2 .

It is a cyclic number.

It is not a de Polignac number, because 55693789 - 2¹⁹ = 55169501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55691789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27846894 + 27846895.

It is an arithmetic number, because the mean of its divisors is an integer number (27846895).

Almost surely, 2^55693789 is an apocalyptic number.

It is an amenable number.

55693789 is a deficient number, since it is larger than the sum of its proper divisors (1).

55693789 is an equidigital number, since it uses as much as digits as its factorization.

55693789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 52.

The square root of 55693789 is about 7462.8271452580. The cubic root of 55693789 is about 381.8876276469.

The spelling of 55693789 in words is "fifty-five million, six hundred ninety-three thousand, seven hundred eighty-nine".