552824820 has 72 divisors (see below), whose sum is σ = 1697151456. Its totient is φ = 145639872.

The previous prime is 552824791. The next prime is 552824827. The reversal of 552824820 is 28428255.

552824820 is a `hidden beast` number, since 552 + 8 + 24 + 82 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552824827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3562 + ... + 33441.

It is an arithmetic number, because the mean of its divisors is an integer number (23571548).

Almost surely, 2^552824820 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 552824820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848575728).

552824820 is an abundant number, since it is smaller than the sum of its proper divisors (1144326636).

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

552824820 is a wasteful number, since it uses less digits than its factorization.

552824820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37101 (or 37096 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 552824820 is about 23512.2270319083. The cubic root of 552824820 is about 820.7215639570.

The spelling of 552824820 in words is "five hundred fifty-two million, eight hundred twenty-four thousand, eight hundred twenty".