553966 has 8 divisors (see below), whose sum is σ = 949680. Its totient is φ = 237408.

The previous prime is 553963. The next prime is 553981. The reversal of 553966 is 669355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 5³ + 5³ + 9⁶ + 3⁹ + 6⁴ + 6⁴ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 553966.

It is not an unprimeable number, because it can be changed into a prime (553961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19771 + ... + 19798.

It is an arithmetic number, because the mean of its divisors is an integer number (118710).

2⁵⁵³⁹⁶⁶ is an apocalyptic number.

553966 is a deficient number, since it is larger than the sum of its proper divisors (395714).

553966 is a wasteful number, since it uses less digits than its factorization.

553966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39578.

The product of its digits is 24300, while the sum is 34.

The square root of 553966 is about 744.2889223951. The cubic root of 553966 is about 82.1285906270.

It can be divided in two parts, 55 and 3966, that multiplied together give a triangular number (218130 = T₆₆₀).

The spelling of 553966 in words is "five hundred fifty-three thousand, nine hundred sixty-six".