65530057 has 2 divisors, whose sum is σ = 65530058. Its totient is φ = 65530056.

The previous prime is 65530039. The next prime is 65530067. The reversal of 65530057 is 75003556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 15912121 = 7044^2 + 3989^2 .

It is a cyclic number.

It is not a de Polignac number, because 65530057 - 2¹¹ = 65528009 is a prime.

It is not a weakly prime, because it can be changed into another prime (65530027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32765028 + 32765029.

It is an arithmetic number, because the mean of its divisors is an integer number (32765029).

Almost surely, 2^65530057 is an apocalyptic number.

It is an amenable number.

65530057 is a deficient number, since it is larger than the sum of its proper divisors (1).

65530057 is an equidigital number, since it uses as much as digits as its factorization.

65530057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 65530057 is about 8095.0637428003. The cubic root of 65530057 is about 403.1625485687.

The spelling of 65530057 in words is "sixty-five million, five hundred thirty thousand, fifty-seven".