53197537 has 2 divisors, whose sum is σ = 53197538. Its totient is φ = 53197536.

The previous prime is 53197523. The next prime is 53197567. The reversal of 53197537 is 73579135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48427681 + 4769856 = 6959^2 + 2184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53197537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53197537.

It is not a weakly prime, because it can be changed into another prime (53197567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26598768 + 26598769.

It is an arithmetic number, because the mean of its divisors is an integer number (26598769).

Almost surely, 2^53197537 is an apocalyptic number.

It is an amenable number.

53197537 is a deficient number, since it is larger than the sum of its proper divisors (1).

53197537 is an equidigital number, since it uses as much as digits as its factorization.

53197537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99225, while the sum is 40.

The square root of 53197537 is about 7293.6641683039. The cubic root of 53197537 is about 376.0946669171.

The spelling of 53197537 in words is "fifty-three million, one hundred ninety-seven thousand, five hundred thirty-seven".