55000783 has 2 divisors, whose sum is σ = 55000784. Its totient is φ = 55000782.

The previous prime is 55000753. The next prime is 55000787. The reversal of 55000783 is 38700055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55000783 - 2¹³ = 54992591 is a prime.

It is a super-2 number, since 2×55000783² = 6050172261226178, which contains 22 as substring.

It is equal to p_3282238 and since 55000783 and 3282238 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55000787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500391 + 27500392.

It is an arithmetic number, because the mean of its divisors is an integer number (27500392).

Almost surely, 2^55000783 is an apocalyptic number.

55000783 is a deficient number, since it is larger than the sum of its proper divisors (1).

55000783 is an equidigital number, since it uses as much as digits as its factorization.

55000783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 55000783 is about 7416.2512767570. The cubic root of 55000783 is about 380.2970507414.

The spelling of 55000783 in words is "fifty-five million, seven hundred eighty-three", and thus it is an aban number.