53895814997 has 2 divisors, whose sum is σ = 53895814998. Its totient is φ = 53895814996.

The previous prime is 53895814981. The next prime is 53895815041. The reversal of 53895814997 is 79941859835.

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., 53793380356 + 102434641 = 231934^2 + 10121^2 .

It is a cyclic number.

It is not a de Polignac number, because 53895814997 - 2⁴ = 53895814981 is a prime.

It is a super-2 number, since 2×53895814997² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53895814927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26947907498 + 26947907499.

It is an arithmetic number, because the mean of its divisors is an integer number (26947907499).

Almost surely, 2^53895814997 is an apocalyptic number.

It is an amenable number.

53895814997 is a deficient number, since it is larger than the sum of its proper divisors (1).

53895814997 is an equidigital number, since it uses as much as digits as its factorization.

53895814997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97977600, while the sum is 68.

The spelling of 53895814997 in words is "fifty-three billion, eight hundred ninety-five million, eight hundred fourteen thousand, nine hundred ninety-seven".