53474765569 has 2 divisors, whose sum is σ = 53474765570. Its totient is φ = 53474765568.

The previous prime is 53474765563. The next prime is 53474765587. The reversal of 53474765569 is 96556747435.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48515789169 + 4958976400 = 220263^2 + 70420^2 .

It is a cyclic number.

It is not a de Polignac number, because 53474765569 - 2¹¹ = 53474763521 is a prime.

It is a super-2 number, since 2×53474765569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53474765563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26737382784 + 26737382785.

It is an arithmetic number, because the mean of its divisors is an integer number (26737382785).

Almost surely, 2^53474765569 is an apocalyptic number.

It is an amenable number.

53474765569 is a deficient number, since it is larger than the sum of its proper divisors (1).

53474765569 is an equidigital number, since it uses as much as digits as its factorization.

53474765569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256000, while the sum is 61.

The spelling of 53474765569 in words is "fifty-three billion, four hundred seventy-four million, seven hundred sixty-five thousand, five hundred sixty-nine".