65520937 has 2 divisors, whose sum is σ = 65520938. Its totient is φ = 65520936.

The previous prime is 65520913. The next prime is 65520943. The reversal of 65520937 is 73902556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53158681 + 12362256 = 7291^2 + 3516^2 .

It is a cyclic number.

It is not a de Polignac number, because 65520937 - 2¹¹ = 65518889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65520896 and 65520905.

It is not a weakly prime, because it can be changed into another prime (65524937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32760468 + 32760469.

It is an arithmetic number, because the mean of its divisors is an integer number (32760469).

Almost surely, 2^65520937 is an apocalyptic number.

It is an amenable number.

65520937 is a deficient number, since it is larger than the sum of its proper divisors (1).

65520937 is an equidigital number, since it uses as much as digits as its factorization.

65520937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 65520937 is about 8094.5004169498. The cubic root of 65520937 is about 403.1438446171.

The spelling of 65520937 in words is "sixty-five million, five hundred twenty thousand, nine hundred thirty-seven".