660054 has 16 divisors (see below), whose sum is σ = 1377792. Its totient is φ = 210408.

The previous prime is 660053. The next prime is 660061. The reversal of 660054 is 450066.

It is a self number, because there is not a number n which added to its sum of digits gives 660054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254 + ... + 2529.

It is an arithmetic number, because the mean of its divisors is an integer number (86112).

2⁶⁶⁰⁰⁵⁴ is an apocalyptic number.

660054 is an abundant number, since it is smaller than the sum of its proper divisors (717738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660054 is a wasteful number, since it uses less digits than its factorization.

660054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 660054 is about 812.4370744864. The cubic root of 660054 is about 87.0682513709.

The spelling of 660054 in words is "six hundred sixty thousand, fifty-four".