65281607 has 2 divisors, whose sum is σ = 65281608. Its totient is φ = 65281606.

The previous prime is 65281583. The next prime is 65281609. The reversal of 65281607 is 70618256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65281607 - 2⁸ = 65281351 is a prime.

Together with 65281609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65281609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32640803 + 32640804.

It is an arithmetic number, because the mean of its divisors is an integer number (32640804).

Almost surely, 2^65281607 is an apocalyptic number.

65281607 is a deficient number, since it is larger than the sum of its proper divisors (1).

65281607 is an equidigital number, since it uses as much as digits as its factorization.

65281607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 65281607 is about 8079.7033980215. The cubic root of 65281607 is about 402.6523878057.

The spelling of 65281607 in words is "sixty-five million, two hundred eighty-one thousand, six hundred seven".