65512651 has 2 divisors, whose sum is σ = 65512652. Its totient is φ = 65512650.

The previous prime is 65512649. The next prime is 65512673. The reversal of 65512651 is 15621556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65512651 - 2¹ = 65512649 is a prime.

Together with 65512649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65512631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32756325 + 32756326.

It is an arithmetic number, because the mean of its divisors is an integer number (32756326).

Almost surely, 2^65512651 is an apocalyptic number.

65512651 is a deficient number, since it is larger than the sum of its proper divisors (1).

65512651 is an equidigital number, since it uses as much as digits as its factorization.

65512651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 31.

The square root of 65512651 is about 8093.9885717735. The cubic root of 65512651 is about 403.1268495879.

The spelling of 65512651 in words is "sixty-five million, five hundred twelve thousand, six hundred fifty-one".