65449499 has 2 divisors, whose sum is σ = 65449500. Its totient is φ = 65449498.

The previous prime is 65449493. The next prime is 65449511. The reversal of 65449499 is 99494456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65449499 - 2²⁰ = 64400923 is a prime.

It is not a weakly prime, because it can be changed into another prime (65449493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32724749 + 32724750.

It is an arithmetic number, because the mean of its divisors is an integer number (32724750).

Almost surely, 2^65449499 is an apocalyptic number.

65449499 is a deficient number, since it is larger than the sum of its proper divisors (1).

65449499 is an equidigital number, since it uses as much as digits as its factorization.

65449499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 65449499 is about 8090.0864643093. The cubic root of 65449499 is about 402.9972743526.

The spelling of 65449499 in words is "sixty-five million, four hundred forty-nine thousand, four hundred ninety-nine".