554005551 has 24 divisors (see below), whose sum is σ = 828261504. Its totient is φ = 326659680.

The previous prime is 554005549. The next prime is 554005559. The reversal of 554005551 is 155500455.

It is not a de Polignac number, because 554005551 - 2¹ = 554005549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554005559) 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 23 ways as a sum of consecutive naturals, for example, 39046 + ... + 51308.

It is an arithmetic number, because the mean of its divisors is an integer number (34510896).

Almost surely, 2^554005551 is an apocalyptic number.

554005551 is a deficient number, since it is larger than the sum of its proper divisors (274255953).

554005551 is a wasteful number, since it uses less digits than its factorization.

554005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12351 (or 12314 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 554005551 is about 23537.3225112798. The cubic root of 554005551 is about 821.3054513362.

The spelling of 554005551 in words is "five hundred fifty-four million, five thousand, five hundred fifty-one".