554100520121 has 4 divisors (see below), whose sum is σ = 569076209892. Its totient is φ = 539124830352.

The previous prime is 554100520093. The next prime is 554100520157. The reversal of 554100520121 is 121025001455.

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

It can be written as a sum of positive squares in 2 ways, for example, as 420189168400 + 133911351721 = 648220^2 + 365939^2 .

It is a cyclic number.

It is not a de Polignac number, because 554100520121 - 2¹⁰ = 554100519097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554100520021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7487844830 + ... + 7487844903.

It is an arithmetic number, because the mean of its divisors is an integer number (142269052473).

Almost surely, 2^554100520121 is an apocalyptic number.

It is an amenable number.

554100520121 is a deficient number, since it is larger than the sum of its proper divisors (14975689771).

554100520121 is a wasteful number, since it uses less digits than its factorization.

554100520121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14975689770.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 554100520121 its reverse (121025001455), we get a palindrome (675125521576).

The spelling of 554100520121 in words is "five hundred fifty-four billion, one hundred million, five hundred twenty thousand, one hundred twenty-one".