55730273 has 2 divisors, whose sum is σ = 55730274. Its totient is φ = 55730272.

The previous prime is 55730263. The next prime is 55730291. The reversal of 55730273 is 37203755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52519009 + 3211264 = 7247^2 + 1792^2 .

It is a cyclic number.

It is not a de Polignac number, because 55730273 - 2¹⁸ = 55468129 is a prime.

It is not a weakly prime, because it can be changed into another prime (55730263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27865136 + 27865137.

It is an arithmetic number, because the mean of its divisors is an integer number (27865137).

Almost surely, 2^55730273 is an apocalyptic number.

It is an amenable number.

55730273 is a deficient number, since it is larger than the sum of its proper divisors (1).

55730273 is an equidigital number, since it uses as much as digits as its factorization.

55730273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 32.

The square root of 55730273 is about 7465.2711270255. The cubic root of 55730273 is about 381.9709986846.

The spelling of 55730273 in words is "fifty-five million, seven hundred thirty thousand, two hundred seventy-three".