533455128400 has 30 divisors (see below), whose sum is σ = 1281625946942. Its totient is φ = 213382051200.

The previous prime is 533455128397. The next prime is 533455128407. The reversal of 533455128400 is 4821554335.

It can be written as a sum of positive squares in 3 ways, for example, as 180747420736 + 352707707664 = 425144^2 + 593892^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533455128407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666818511 + ... + 666819310.

Almost surely, 2^533455128400 is an apocalyptic number.

533455128400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

533455128400 is an abundant number, since it is smaller than the sum of its proper divisors (748170818542).

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

533455128400 is a wasteful number, since it uses less digits than its factorization.

533455128400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333637839 (or 1333637828 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 533455128400 in words is "five hundred thirty-three billion, four hundred fifty-five million, one hundred twenty-eight thousand, four hundred".