65725547 has 2 divisors, whose sum is σ = 65725548. Its totient is φ = 65725546.

The previous prime is 65725537. The next prime is 65725573. The reversal of 65725547 is 74552756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65725547 - 2⁶ = 65725483 is a prime.

It is not a weakly prime, because it can be changed into another prime (65725507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32862773 + 32862774.

It is an arithmetic number, because the mean of its divisors is an integer number (32862774).

Almost surely, 2^65725547 is an apocalyptic number.

65725547 is a deficient number, since it is larger than the sum of its proper divisors (1).

65725547 is an equidigital number, since it uses as much as digits as its factorization.

65725547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294000, while the sum is 41.

The square root of 65725547 is about 8107.1293933180. The cubic root of 65725547 is about 403.5630569088.

The spelling of 65725547 in words is "sixty-five million, seven hundred twenty-five thousand, five hundred forty-seven".