53212220446709 has 2 divisors, whose sum is σ = 53212220446710. Its totient is φ = 53212220446708.

The previous prime is 53212220446639. The next prime is 53212220446717. The reversal of 53212220446709 is 90764402221235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53172943152484 + 39277294225 = 7291978^2 + 198185^2 .

It is a cyclic number.

It is not a de Polignac number, because 53212220446709 - 2¹² = 53212220442613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53212220446799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606110223354 + 26606110223355.

It is an arithmetic number, because the mean of its divisors is an integer number (26606110223355).

Almost surely, 2^{53212220446709} is an apocalyptic number.

It is an amenable number.

53212220446709 is a deficient number, since it is larger than the sum of its proper divisors (1).

53212220446709 is an equidigital number, since it uses as much as digits as its factorization.

53212220446709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 53212220446709 in words is "fifty-three trillion, two hundred twelve billion, two hundred twenty million, four hundred forty-six thousand, seven hundred nine".