553864 has 8 divisors (see below), whose sum is σ = 1038510. Its totient is φ = 276928.

The previous prime is 553849. The next prime is 553867. The reversal of 553864 is 468355.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 260100 = 542^2 + 510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (553867) by changing a digit.

553864 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 as a sum of consecutive naturals, namely, 34609 + ... + 34624.

2⁵⁵³⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

553864 is a deficient number, since it is larger than the sum of its proper divisors (484646).

553864 is a wasteful number, since it uses less digits than its factorization.

553864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69239 (or 69235 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 553864 is about 744.2203974630. The cubic root of 553864 is about 82.1235496255.

The spelling of 553864 in words is "five hundred fifty-three thousand, eight hundred sixty-four".