659994055 has 16 divisors (see below), whose sum is σ = 905649984. Its totient is φ = 452309760.

The previous prime is 659994053. The next prime is 659994059. The reversal of 659994055 is 550499956.

It is not a de Polignac number, because 659994055 - 2¹ = 659994053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 659993993 and 659994011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659994053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73195 + ... + 81715.

It is an arithmetic number, because the mean of its divisors is an integer number (56603124).

Almost surely, 2^659994055 is an apocalyptic number.

659994055 is a deficient number, since it is larger than the sum of its proper divisors (245655929).

659994055 is a wasteful number, since it uses less digits than its factorization.

659994055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10746.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The square root of 659994055 is about 25690.3494526641. The cubic root of 659994055 is about 870.6561549346.

The spelling of 659994055 in words is "six hundred fifty-nine million, nine hundred ninety-four thousand, fifty-five".