553446432 has 480 divisors, whose sum is σ = 2107607040. Its totient is φ = 138309120.

The previous prime is 553446391. The next prime is 553446457. The reversal of 553446432 is 234644355.

553446432 is a `hidden beast` number, since 5 + 5 + 3 + 4 + 4 + 643 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9380419 + ... + 9380477.

It is an arithmetic number, because the mean of its divisors is an integer number (4390848).

Almost surely, 2^553446432 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 553446432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053803520).

553446432 is an abundant number, since it is smaller than the sum of its proper divisors (1554160608).

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

553446432 is a wasteful number, since it uses less digits than its factorization.

553446432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 129 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The square root of 553446432 is about 23525.4422275119. The cubic root of 553446432 is about 821.0290629796.

It can be divided in two parts, 553446 and 432, that added together give a triangular number (553878 = T₁₀₅₂).

The spelling of 553446432 in words is "five hundred fifty-three million, four hundred forty-six thousand, four hundred thirty-two".