553143120 has 80 divisors (see below), whose sum is σ = 1742900352. Its totient is φ = 145082880.

The previous prime is 553143109. The next prime is 553143121. The reversal of 553143120 is 21341355.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×553143120² = 611934622406668800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553143121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4252 + ... + 33531.

Almost surely, 2^553143120 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 553143120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871450176).

553143120 is an abundant number, since it is smaller than the sum of its proper divisors (1189757232).

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

553143120 is a wasteful number, since it uses less digits than its factorization.

553143120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37860 (or 37854 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 553143120 is about 23518.9948764823. The cubic root of 553143120 is about 820.8790493805.

Adding to 553143120 its reverse (21341355), we get a palindrome (574484475).

The spelling of 553143120 in words is "five hundred fifty-three million, one hundred forty-three thousand, one hundred twenty".