54689659 has 2 divisors, whose sum is σ = 54689660. Its totient is φ = 54689658.

The previous prime is 54689639. The next prime is 54689671. The reversal of 54689659 is 95698645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54689659 - 2¹³ = 54681467 is a prime.

It is not a weakly prime, because it can be changed into another prime (54689639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27344829 + 27344830.

It is an arithmetic number, because the mean of its divisors is an integer number (27344830).

Almost surely, 2^54689659 is an apocalyptic number.

54689659 is a deficient number, since it is larger than the sum of its proper divisors (1).

54689659 is an equidigital number, since it uses as much as digits as its factorization.

54689659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 52.

The square root of 54689659 is about 7395.2457024767. The cubic root of 54689659 is about 379.5786164630.

The spelling of 54689659 in words is "fifty-four million, six hundred eighty-nine thousand, six hundred fifty-nine".