553220040 has 64 divisors (see below), whose sum is σ = 1668418560. Its totient is φ = 146746880.

The previous prime is 553220027. The next prime is 553220047. The reversal of 553220040 is 40022355.

It is a junction number, because it is equal to n+sod(n) for n = 553219989 and 553220016.

It is not an unprimeable number, because it can be changed into a prime (553220047) 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, 10852 + ... + 34988.

It is an arithmetic number, because the mean of its divisors is an integer number (26069040).

Almost surely, 2^553220040 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 553220040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834209280).

553220040 is an abundant number, since it is smaller than the sum of its proper divisors (1115198520).

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

553220040 is a wasteful number, since it uses less digits than its factorization.

553220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24342 (or 24338 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 553220040 is about 23520.6300936008. The cubic root of 553220040 is about 820.9170980564.

Adding to 553220040 its reverse (40022355), we get a palindrome (593242395).

The spelling of 553220040 in words is "five hundred fifty-three million, two hundred twenty thousand, forty".