53666783 has 2 divisors, whose sum is σ = 53666784. Its totient is φ = 53666782.

The previous prime is 53666749. The next prime is 53666803. The reversal of 53666783 is 38766635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53666783 - 2⁶ = 53666719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53666713) 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, 26833391 + 26833392.

It is an arithmetic number, because the mean of its divisors is an integer number (26833392).

Almost surely, 2^53666783 is an apocalyptic number.

53666783 is a deficient number, since it is larger than the sum of its proper divisors (1).

53666783 is an equidigital number, since it uses as much as digits as its factorization.

53666783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The square root of 53666783 is about 7325.7615986326. The cubic root of 53666783 is about 377.1972526992.

The spelling of 53666783 in words is "fifty-three million, six hundred sixty-six thousand, seven hundred eighty-three".