65575487 has 2 divisors, whose sum is σ = 65575488. Its totient is φ = 65575486.

The previous prime is 65575483. The next prime is 65575493. The reversal of 65575487 is 78457556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65575487 - 2² = 65575483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65575483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32787743 + 32787744.

It is an arithmetic number, because the mean of its divisors is an integer number (32787744).

Almost surely, 2^65575487 is an apocalyptic number.

65575487 is a deficient number, since it is larger than the sum of its proper divisors (1).

65575487 is an equidigital number, since it uses as much as digits as its factorization.

65575487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176000, while the sum is 47.

The square root of 65575487 is about 8097.8692876583. The cubic root of 65575487 is about 403.2556938340.

The spelling of 65575487 in words is "sixty-five million, five hundred seventy-five thousand, four hundred eighty-seven".