65551459 has 2 divisors, whose sum is σ = 65551460. Its totient is φ = 65551458.

The previous prime is 65551433. The next prime is 65551469. The reversal of 65551459 is 95415556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65551459 - 2⁷ = 65551331 is a prime.

It is not a weakly prime, because it can be changed into another prime (65551429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32775729 + 32775730.

It is an arithmetic number, because the mean of its divisors is an integer number (32775730).

Almost surely, 2^65551459 is an apocalyptic number.

65551459 is a deficient number, since it is larger than the sum of its proper divisors (1).

65551459 is an equidigital number, since it uses as much as digits as its factorization.

65551459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135000, while the sum is 40.

The square root of 65551459 is about 8096.3855515903. The cubic root of 65551459 is about 403.2064345149.

The spelling of 65551459 in words is "sixty-five million, five hundred fifty-one thousand, four hundred fifty-nine".