53320637 has 2 divisors, whose sum is σ = 53320638. Its totient is φ = 53320636.

The previous prime is 53320633. The next prime is 53320679. The reversal of 53320637 is 73602335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45954841 + 7365796 = 6779^2 + 2714^2 .

It is a cyclic number.

It is not a de Polignac number, because 53320637 - 2² = 53320633 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53320633) 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, 26660318 + 26660319.

It is an arithmetic number, because the mean of its divisors is an integer number (26660319).

Almost surely, 2^53320637 is an apocalyptic number.

It is an amenable number.

53320637 is a deficient number, since it is larger than the sum of its proper divisors (1).

53320637 is an equidigital number, since it uses as much as digits as its factorization.

53320637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 53320637 is about 7302.0981231424. The cubic root of 53320637 is about 376.3845399142.

The spelling of 53320637 in words is "fifty-three million, three hundred twenty thousand, six hundred thirty-seven".