65552077 has 2 divisors, whose sum is σ = 65552078. Its totient is φ = 65552076.

The previous prime is 65552057. The next prime is 65552087. The reversal of 65552077 is 77025556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62631396 + 2920681 = 7914^2 + 1709^2 .

It is a cyclic number.

It is not a de Polignac number, because 65552077 - 2¹⁹ = 65027789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65552027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32776038 + 32776039.

It is an arithmetic number, because the mean of its divisors is an integer number (32776039).

Almost surely, 2^65552077 is an apocalyptic number.

It is an amenable number.

65552077 is a deficient number, since it is larger than the sum of its proper divisors (1).

65552077 is an equidigital number, since it uses as much as digits as its factorization.

65552077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 65552077 is about 8096.4237166789. The cubic root of 65552077 is about 403.2077016151.

The spelling of 65552077 in words is "sixty-five million, five hundred fifty-two thousand, seventy-seven".