53989783 has 2 divisors, whose sum is σ = 53989784. Its totient is φ = 53989782.

The previous prime is 53989777. The next prime is 53989823. The reversal of 53989783 is 38798935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53989783 - 2⁵ = 53989751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53989783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53989723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26994891 + 26994892.

It is an arithmetic number, because the mean of its divisors is an integer number (26994892).

Almost surely, 2^53989783 is an apocalyptic number.

53989783 is a deficient number, since it is larger than the sum of its proper divisors (1).

53989783 is an equidigital number, since it uses as much as digits as its factorization.

53989783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 53989783 is about 7347.7740166665. The cubic root of 53989783 is about 377.9524752920.

The spelling of 53989783 in words is "fifty-three million, nine hundred eighty-nine thousand, seven hundred eighty-three".