554987 has 4 divisors (see below), whose sum is σ = 559176. Its totient is φ = 550800.

The previous prime is 554977. The next prime is 555029. The reversal of 554987 is 789455.

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 554987 - 2⁶ = 554923 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 554987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1889 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (139794).

2⁵⁵⁴⁹⁸⁷ is an apocalyptic number.

554987 is a deficient number, since it is larger than the sum of its proper divisors (4189).

554987 is a wasteful number, since it uses less digits than its factorization.

554987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188.

The product of its digits is 50400, while the sum is 38.

The square root of 554987 is about 744.9744962078. The cubic root of 554987 is about 82.1790160008.

Adding to 554987 its sum of digits (38), we get a square (555025 = 745²).

The spelling of 554987 in words is "five hundred fifty-four thousand, nine hundred eighty-seven".