554202110021 has 4 divisors (see below), whose sum is σ = 633373840032. Its totient is φ = 475030380012.

The previous prime is 554202109987. The next prime is 554202110047. The reversal of 554202110021 is 120011202455.

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 a de Polignac number, because none of the positive numbers 2^k-554202110021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554202110821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39585864995 + ... + 39585865008.

It is an arithmetic number, because the mean of its divisors is an integer number (158343460008).

Almost surely, 2^554202110021 is an apocalyptic number.

It is an amenable number.

554202110021 is a deficient number, since it is larger than the sum of its proper divisors (79171730011).

554202110021 is an equidigital number, since it uses as much as digits as its factorization.

554202110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79171730010.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 554202110021 its reverse (120011202455), we get a palindrome (674213312476).

The spelling of 554202110021 in words is "five hundred fifty-four billion, two hundred two million, one hundred ten thousand, twenty-one".