53347121 has 2 divisors, whose sum is σ = 53347122. Its totient is φ = 53347120.

The previous prime is 53347111. The next prime is 53347157. The reversal of 53347121 is 12174335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 57121 = 7300^2 + 239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53347121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53347111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26673560 + 26673561.

It is an arithmetic number, because the mean of its divisors is an integer number (26673561).

Almost surely, 2^53347121 is an apocalyptic number.

It is an amenable number.

53347121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53347121 is an equidigital number, since it uses as much as digits as its factorization.

53347121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 53347121 is about 7303.9113494072. The cubic root of 53347121 is about 376.4468454854.

The spelling of 53347121 in words is "fifty-three million, three hundred forty-seven thousand, one hundred twenty-one".