554551121 has 4 divisors (see below), whose sum is σ = 554760192. Its totient is φ = 554342052.

The previous prime is 554551099. The next prime is 554551133. The reversal of 554551121 is 121155455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 554551121 - 2⁶ = 554551057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (554551141) 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, 100505 + ... + 105878.

It is an arithmetic number, because the mean of its divisors is an integer number (138690048).

Almost surely, 2^554551121 is an apocalyptic number.

It is an amenable number.

554551121 is a deficient number, since it is larger than the sum of its proper divisors (209071).

554551121 is a wasteful number, since it uses less digits than its factorization.

554551121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209070.

The product of its digits is 5000, while the sum is 29.

The square root of 554551121 is about 23548.9091254776. The cubic root of 554551121 is about 821.5749628414.

The spelling of 554551121 in words is "five hundred fifty-four million, five hundred fifty-one thousand, one hundred twenty-one".