53344706021 has 2 divisors, whose sum is σ = 53344706022. Its totient is φ = 53344706020.

The previous prime is 53344706017. The next prime is 53344706027. The reversal of 53344706021 is 12060744335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37553013796 + 15791692225 = 193786^2 + 125665^2 .

It is a cyclic number.

It is not a de Polignac number, because 53344706021 - 2² = 53344706017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53344706027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26672353010 + 26672353011.

It is an arithmetic number, because the mean of its divisors is an integer number (26672353011).

Almost surely, 2^53344706021 is an apocalyptic number.

It is an amenable number.

53344706021 is a deficient number, since it is larger than the sum of its proper divisors (1).

53344706021 is an equidigital number, since it uses as much as digits as its factorization.

53344706021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 53344706021 in words is "fifty-three billion, three hundred forty-four million, seven hundred six thousand, twenty-one".