55730453 has 2 divisors, whose sum is σ = 55730454. Its totient is φ = 55730452.

The previous prime is 55730419. The next prime is 55730459. The reversal of 55730453 is 35403755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53831569 + 1898884 = 7337^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 55730453 - 2¹⁴ = 55714069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55730459) 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, 27865226 + 27865227.

It is an arithmetic number, because the mean of its divisors is an integer number (27865227).

Almost surely, 2^55730453 is an apocalyptic number.

It is an amenable number.

55730453 is a deficient number, since it is larger than the sum of its proper divisors (1).

55730453 is an equidigital number, since it uses as much as digits as its factorization.

55730453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 55730453 is about 7465.2831828404. The cubic root of 55730453 is about 381.9714099195.

The spelling of 55730453 in words is "fifty-five million, seven hundred thirty thousand, four hundred fifty-three".