55763189 has 2 divisors, whose sum is σ = 55763190. Its totient is φ = 55763188.

The previous prime is 55763171. The next prime is 55763209. The reversal of 55763189 is 98136755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49463089 + 6300100 = 7033^2 + 2510^2 .

It is a cyclic number.

It is not a de Polignac number, because 55763189 - 2⁸ = 55762933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55763129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27881594 + 27881595.

It is an arithmetic number, because the mean of its divisors is an integer number (27881595).

Almost surely, 2^55763189 is an apocalyptic number.

It is an amenable number.

55763189 is a deficient number, since it is larger than the sum of its proper divisors (1).

55763189 is an equidigital number, since it uses as much as digits as its factorization.

55763189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 55763189 is about 7467.4754100700. The cubic root of 55763189 is about 382.0461851270.

The spelling of 55763189 in words is "fifty-five million, seven hundred sixty-three thousand, one hundred eighty-nine".