168553 has 12 divisors (see below), whose sum is σ = 212800. Its totient is φ = 130680.

The previous prime is 168541. The next prime is 168559. The reversal of 168553 is 355861.

It is a de Polignac number, because none of the positive numbers 2^k-168553 is a prime.

It is a super-2 number, since 2×168553² = 56820227618, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748 + ... + 946.

2¹⁶⁸⁵⁵³ is an apocalyptic number.

It is an amenable number.

168553 is a deficient number, since it is larger than the sum of its proper divisors (44247).

168553 is a wasteful number, since it uses less digits than its factorization.

168553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 217 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 168553 is about 410.5520673435. The cubic root of 168553 is about 55.2389602780.

The spelling of 168553 in words is "one hundred sixty-eight thousand, five hundred fifty-three".