553233720 has 256 divisors, whose sum is σ = 1976970240. Its totient is φ = 122462208.

The previous prime is 553233713. The next prime is 553233727. The reversal of 553233720 is 27332355.

553233720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (553233713) and next prime (553233727).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553233727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 609507 + ... + 610413.

It is an arithmetic number, because the mean of its divisors is an integer number (7722540).

Almost surely, 2^553233720 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 553233720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988485120).

553233720 is an abundant number, since it is smaller than the sum of its proper divisors (1423736520).

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

553233720 is a wasteful number, since it uses less digits than its factorization.

553233720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 30.

The square root of 553233720 is about 23520.9209003389. The cubic root of 553233720 is about 820.9238645342.

The spelling of 553233720 in words is "five hundred fifty-three million, two hundred thirty-three thousand, seven hundred twenty".