53621297 has 2 divisors, whose sum is σ = 53621298. Its totient is φ = 53621296.

The previous prime is 53621221. The next prime is 53621327. The reversal of 53621297 is 79212635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52548001 + 1073296 = 7249^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 53621297 - 2¹⁴ = 53604913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53621207) 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, 26810648 + 26810649.

It is an arithmetic number, because the mean of its divisors is an integer number (26810649).

Almost surely, 2^53621297 is an apocalyptic number.

It is an amenable number.

53621297 is a deficient number, since it is larger than the sum of its proper divisors (1).

53621297 is an equidigital number, since it uses as much as digits as its factorization.

53621297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 53621297 is about 7322.6564169023. The cubic root of 53621297 is about 377.0906563850.

The spelling of 53621297 in words is "fifty-three million, six hundred twenty-one thousand, two hundred ninety-seven".