552420 has 120 divisors (see below), whose sum is σ = 1951488. Its totient is φ = 129600.

The previous prime is 552403. The next prime is 552469. The reversal of 552420 is 24255.

552420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 552393 and 552402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17805 + ... + 17835.

2⁵⁵²⁴²⁰ is an apocalyptic number.

552420 is the 372-nd decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975744).

552420 is an abundant number, since it is smaller than the sum of its proper divisors (1399068).

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

552420 is a wasteful number, since it uses less digits than its factorization.

552420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 552420 is about 743.2496215943. The cubic root of 552420 is about 82.0521183642.

Adding to 552420 its reverse (24255), we get a palindrome (576675).

It can be divided in two parts, 5 and 52420, that added together give a palindrome (52425).

The spelling of 552420 in words is "five hundred fifty-two thousand, four hundred twenty".