554550993 has 6 divisors (see below), whose sum is σ = 801018114. Its totient is φ = 369700656.

The previous prime is 554550991. The next prime is 554551057. The reversal of 554550993 is 399055455.

554550993 is a `hidden beast` number, since 5 + 5 + 4 + 550 + 9 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 359026704 + 195524289 = 18948^2 + 13983^2 .

It is not a de Polignac number, because 554550993 - 2¹ = 554550991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (554550991) 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 5 ways as a sum of consecutive naturals, for example, 30808380 + ... + 30808397.

It is an arithmetic number, because the mean of its divisors is an integer number (133503019).

Almost surely, 2^554550993 is an apocalyptic number.

It is an amenable number.

554550993 is a deficient number, since it is larger than the sum of its proper divisors (246467121).

554550993 is a wasteful number, since it uses less digits than its factorization.

554550993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61616783 (or 61616780 counting only the distinct ones).

The product of its (nonzero) digits is 607500, while the sum is 45.

The square root of 554550993 is about 23548.9064077294. The cubic root of 554550993 is about 821.5748996302.

The spelling of 554550993 in words is "five hundred fifty-four million, five hundred fifty thousand, nine hundred ninety-three".