553554 has 48 divisors (see below), whose sum is σ = 1336608. Its totient is φ = 171072.

The previous prime is 553549. The next prime is 553561. The reversal of 553554 is 455355.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 553554.

It is an unprimeable number.

553554 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8229 + ... + 8295.

It is an arithmetic number, because the mean of its divisors is an integer number (27846).

2⁵⁵³⁵⁵⁴ is an apocalyptic number.

553554 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 553554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668304).

553554 is an abundant number, since it is smaller than the sum of its proper divisors (783054).

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

553554 is a wasteful number, since it uses less digits than its factorization.

553554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 89 counting only the distinct ones).

The product of its digits is 7500, while the sum is 27.

The square root of 553554 is about 744.0120966759. The cubic root of 553554 is about 82.1082251345.

553554 divided by its sum of digits (27) gives a palindrome (20502).

The spelling of 553554 in words is "five hundred fifty-three thousand, five hundred fifty-four".