552821760 has 440 divisors, whose sum is σ = 2092459776. Its totient is φ = 139345920.

The previous prime is 552821723. The next prime is 552821761. The reversal of 552821760 is 67128255.

It is a happy number.

It is a super-2 number, since 2×552821760² = 611223796658995200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (552821761) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12856299 + ... + 12856341.

Almost surely, 2^552821760 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 552821760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046229888).

552821760 is an abundant number, since it is smaller than the sum of its proper divisors (1539638016).

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

552821760 is a wasteful number, since it uses less digits than its factorization.

552821760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 552821760 is about 23512.1619592925. The cubic root of 552821760 is about 820.7200496662.

The spelling of 552821760 in words is "five hundred fifty-two million, eight hundred twenty-one thousand, seven hundred sixty".