553530421 has 8 divisors (see below), whose sum is σ = 598561920. Its totient is φ = 509884608.

The previous prime is 553530391. The next prime is 553530431. The reversal of 553530421 is 124035355.

553530421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553530421 - 2⁷ = 553530293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 553530421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553530431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345591 + ... + 347188.

It is an arithmetic number, because the mean of its divisors is an integer number (74820240).

Almost surely, 2^553530421 is an apocalyptic number.

It is an amenable number.

553530421 is a deficient number, since it is larger than the sum of its proper divisors (45031499).

553530421 is a wasteful number, since it uses less digits than its factorization.

553530421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692843.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 553530421 is about 23527.2272271936. The cubic root of 553530421 is about 821.0705929984.

Adding to 553530421 its reverse (124035355), we get a palindrome (677565776).

The spelling of 553530421 in words is "five hundred fifty-three million, five hundred thirty thousand, four hundred twenty-one".