553891 has 8 divisors (see below), whose sum is σ = 602784. Its totient is φ = 505920.

The previous prime is 553873. The next prime is 553897. The reversal of 553891 is 198355.

553891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 553891 - 2¹¹ = 551843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (553897) 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, 1626 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (75348).

2⁵⁵³⁸⁹¹ is an apocalyptic number.

553891 is a deficient number, since it is larger than the sum of its proper divisors (48893).

553891 is a wasteful number, since it uses less digits than its factorization.

553891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its digits is 5400, while the sum is 31.

The square root of 553891 is about 744.2385370296. The cubic root of 553891 is about 82.1248840685.

It can be divided in two parts, 553 and 891, that added together give a square (1444 = 38²).

The spelling of 553891 in words is "five hundred fifty-three thousand, eight hundred ninety-one".