553657543 has 8 divisors (see below), whose sum is σ = 559232960. Its totient is φ = 548091360.

The previous prime is 553657499. The next prime is 553657553. The reversal of 553657543 is 345756355.

It is a happy number.

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 553657543 - 2¹⁷ = 553526471 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 553657543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553657553) 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, 240946 + ... + 243232.

It is an arithmetic number, because the mean of its divisors is an integer number (69904120).

Almost surely, 2^553657543 is an apocalyptic number.

553657543 is a deficient number, since it is larger than the sum of its proper divisors (5575417).

553657543 is a wasteful number, since it uses less digits than its factorization.

553657543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617.

The product of its digits is 945000, while the sum is 43.

The square root of 553657543 is about 23529.9286654252. The cubic root of 553657543 is about 821.1334429898.

The spelling of 553657543 in words is "five hundred fifty-three million, six hundred fifty-seven thousand, five hundred forty-three".