53569799 has 2 divisors, whose sum is σ = 53569800. Its totient is φ = 53569798.

The previous prime is 53569781. The next prime is 53569811. The reversal of 53569799 is 99796535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53569799 - 2⁸ = 53569543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53569799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53569709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26784899 + 26784900.

It is an arithmetic number, because the mean of its divisors is an integer number (26784900).

Almost surely, 2^53569799 is an apocalyptic number.

53569799 is a deficient number, since it is larger than the sum of its proper divisors (1).

53569799 is an equidigital number, since it uses as much as digits as its factorization.

53569799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 53.

The square root of 53569799 is about 7319.1392253461. The cubic root of 53569799 is about 376.9698981798.

The spelling of 53569799 in words is "fifty-three million, five hundred sixty-nine thousand, seven hundred ninety-nine".