53214242981 has 2 divisors, whose sum is σ = 53214242982. Its totient is φ = 53214242980.

The previous prime is 53214242959. The next prime is 53214243007. The reversal of 53214242981 is 18924241235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28481962756 + 24732280225 = 168766^2 + 157265^2 .

It is a cyclic number.

It is not a de Polignac number, because 53214242981 - 2¹⁰ = 53214241957 is a prime.

It is a super-2 number, since 2×53214242981² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53214248981) 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, 26607121490 + 26607121491.

It is an arithmetic number, because the mean of its divisors is an integer number (26607121491).

Almost surely, 2^53214242981 is an apocalyptic number.

It is an amenable number.

53214242981 is a deficient number, since it is larger than the sum of its proper divisors (1).

53214242981 is an equidigital number, since it uses as much as digits as its factorization.

53214242981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The spelling of 53214242981 in words is "fifty-three billion, two hundred fourteen million, two hundred forty-two thousand, nine hundred eighty-one".