553412421 has 6 divisors (see below), whose sum is σ = 799373510. Its totient is φ = 368941608.

The previous prime is 553412417. The next prime is 553412467. The reversal of 553412421 is 124214355.

553412421 is a `hidden beast` number, since 5 + 534 + 124 + 2 + 1 = 666.

553412421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 541260225 + 12152196 = 23265^2 + 3486^2 .

It is not a de Polignac number, because 553412421 - 2² = 553412417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553412401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30745126 + ... + 30745143.

Almost surely, 2^553412421 is an apocalyptic number.

It is an amenable number.

553412421 is a deficient number, since it is larger than the sum of its proper divisors (245961089).

553412421 is a wasteful number, since it uses less digits than its factorization.

553412421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61490275 (or 61490272 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 553412421 is about 23524.7193607065. The cubic root of 553412421 is about 821.0122443742.

Adding to 553412421 its reverse (124214355), we get a palindrome (677626776).

It can be divided in two parts, 5534 and 12421, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 553412421 in words is "five hundred fifty-three million, four hundred twelve thousand, four hundred twenty-one".