553026421 has 8 divisors (see below), whose sum is σ = 577793664. Its totient is φ = 528319440.

The previous prime is 553026413. The next prime is 553026437. The reversal of 553026421 is 124620355.

553026421 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 553026421 - 2³ = 553026413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 553026421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553026121) 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, 4240 + ... + 33526.

It is an arithmetic number, because the mean of its divisors is an integer number (72224208).

Almost surely, 2^553026421 is an apocalyptic number.

It is an amenable number.

553026421 is a deficient number, since it is larger than the sum of its proper divisors (24767243).

553026421 is a wasteful number, since it uses less digits than its factorization.

553026421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30131.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 553026421 is about 23516.5137935026. The cubic root of 553026421 is about 820.8213171840.

Adding to 553026421 its reverse (124620355), we get a palindrome (677646776).

The spelling of 553026421 in words is "five hundred fifty-three million, twenty-six thousand, four hundred twenty-one".