55730497 has 2 divisors, whose sum is σ = 55730498. Its totient is φ = 55730496.

The previous prime is 55730483. The next prime is 55730503. The reversal of 55730497 is 79403755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41525136 + 14205361 = 6444^2 + 3769^2 .

It is a cyclic number.

It is not a de Polignac number, because 55730497 - 2¹⁹ = 55206209 is a prime.

It is not a weakly prime, because it can be changed into another prime (55730407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27865248 + 27865249.

It is an arithmetic number, because the mean of its divisors is an integer number (27865249).

Almost surely, 2^55730497 is an apocalyptic number.

It is an amenable number.

55730497 is a deficient number, since it is larger than the sum of its proper divisors (1).

55730497 is an equidigital number, since it uses as much as digits as its factorization.

55730497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 55730497 is about 7465.2861298144. The cubic root of 55730497 is about 381.9715104435.

The spelling of 55730497 in words is "fifty-five million, seven hundred thirty thousand, four hundred ninety-seven".