554242001021 has 4 divisors (see below), whose sum is σ = 554318677500. Its totient is φ = 554165324544.

The previous prime is 554242000981. The next prime is 554242001029. The reversal of 554242001021 is 120100242455.

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 521738959225 + 32503041796 = 722315^2 + 180286^2 .

It is a cyclic number.

It is not a de Polignac number, because 554242001021 - 2¹⁸ = 554241738877 is a prime.

It is a super-3 number, since 3×554242001021³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554242001029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38327396 + ... + 38341853.

It is an arithmetic number, because the mean of its divisors is an integer number (138579669375).

Almost surely, 2^554242001021 is an apocalyptic number.

It is an amenable number.

554242001021 is a deficient number, since it is larger than the sum of its proper divisors (76676479).

554242001021 is an equidigital number, since it uses as much as digits as its factorization.

554242001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76676478.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 554242001021 its reverse (120100242455), we get a palindrome (674342243476).

The spelling of 554242001021 in words is "five hundred fifty-four billion, two hundred forty-two million, one thousand, twenty-one".