553859840 has 72 divisors (see below), whose sum is σ = 1339866528. Its totient is φ = 219340800.

The previous prime is 553859791. The next prime is 553859843. The reversal of 553859840 is 48958355.

It is a super-3 number, since 3×553859840³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (553859843) 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, 129740 + ... + 133940.

Almost surely, 2^553859840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553859840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669933264).

553859840 is an abundant number, since it is smaller than the sum of its proper divisors (786006688).

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

553859840 is a wasteful number, since it uses less digits than its factorization.

553859840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The square root of 553859840 is about 23534.2269896421. The cubic root of 553859840 is about 821.2334401853.

The spelling of 553859840 in words is "five hundred fifty-three million, eight hundred fifty-nine thousand, eight hundred forty".