554649143 has 4 divisors (see below), whose sum is σ = 555554568. Its totient is φ = 553743720.

The previous prime is 554649127. The next prime is 554649167. The reversal of 554649143 is 341946455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 554649143 - 2⁴ = 554649127 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 554649143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554649113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451793 + ... + 453018.

It is an arithmetic number, because the mean of its divisors is an integer number (138888642).

Almost surely, 2^554649143 is an apocalyptic number.

554649143 is a deficient number, since it is larger than the sum of its proper divisors (905425).

554649143 is an equidigital number, since it uses as much as digits as its factorization.

554649143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905424.

The product of its digits is 259200, while the sum is 41.

The square root of 554649143 is about 23550.9902764194. The cubic root of 554649143 is about 821.6233669611.

The spelling of 554649143 in words is "five hundred fifty-four million, six hundred forty-nine thousand, one hundred forty-three".