53542454869 has 2 divisors, whose sum is σ = 53542454870. Its totient is φ = 53542454868.

The previous prime is 53542454783. The next prime is 53542454881. The reversal of 53542454869 is 96845424535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32242511844 + 21299943025 = 179562^2 + 145945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53542454869 is a prime.

It is a super-2 number, since 2×53542454869² (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 (53542454269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26771227434 + 26771227435.

It is an arithmetic number, because the mean of its divisors is an integer number (26771227435).

Almost surely, 2^53542454869 is an apocalyptic number.

It is an amenable number.

53542454869 is a deficient number, since it is larger than the sum of its proper divisors (1).

53542454869 is an equidigital number, since it uses as much as digits as its factorization.

53542454869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736000, while the sum is 55.

The spelling of 53542454869 in words is "fifty-three billion, five hundred forty-two million, four hundred fifty-four thousand, eight hundred sixty-nine".