65257487 has 2 divisors, whose sum is σ = 65257488. Its totient is φ = 65257486.

The previous prime is 65257483. The next prime is 65257541. The reversal of 65257487 is 78475256.

65257487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65257487 - 2² = 65257483 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65257483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32628743 + 32628744.

It is an arithmetic number, because the mean of its divisors is an integer number (32628744).

Almost surely, 2^65257487 is an apocalyptic number.

65257487 is a deficient number, since it is larger than the sum of its proper divisors (1).

65257487 is an equidigital number, since it uses as much as digits as its factorization.

65257487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 44.

The square root of 65257487 is about 8078.2106310742. The cubic root of 65257487 is about 402.6027915391.

The spelling of 65257487 in words is "sixty-five million, two hundred fifty-seven thousand, four hundred eighty-seven".