53890031969 has 2 divisors, whose sum is σ = 53890031970. Its totient is φ = 53890031968.

The previous prime is 53890031917. The next prime is 53890031989. The reversal of 53890031969 is 96913009835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29620131025 + 24269900944 = 172105^2 + 155788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53890031969 is a prime.

It is a super-2 number, since 2×53890031969² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53890031969.

It is not a weakly prime, because it can be changed into another prime (53890031989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26945015984 + 26945015985.

It is an arithmetic number, because the mean of its divisors is an integer number (26945015985).

Almost surely, 2^53890031969 is an apocalyptic number.

It is an amenable number.

53890031969 is a deficient number, since it is larger than the sum of its proper divisors (1).

53890031969 is an equidigital number, since it uses as much as digits as its factorization.

53890031969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 53890031969 in words is "fifty-three billion, eight hundred ninety million, thirty-one thousand, nine hundred sixty-nine".