65505007 has 2 divisors, whose sum is σ = 65505008. Its totient is φ = 65505006.

The previous prime is 65504977. The next prime is 65505023. The reversal of 65505007 is 70050556.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65505007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65505107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32752503 + 32752504.

It is an arithmetic number, because the mean of its divisors is an integer number (32752504).

Almost surely, 2^65505007 is an apocalyptic number.

65505007 is a deficient number, since it is larger than the sum of its proper divisors (1).

65505007 is an equidigital number, since it uses as much as digits as its factorization.

65505007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 65505007 is about 8093.5163557010. The cubic root of 65505007 is about 403.1111700642. Note that the first 4 decimals are identical.

The spelling of 65505007 in words is "sixty-five million, five hundred five thousand, seven".