211404552554 has 8 divisors (see below), whose sum is σ = 341499661860. Its totient is φ = 97571331936.

The previous prime is 211404552523. The next prime is 211404552577. The reversal of 211404552554 is 455255404112.

211404552554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 183188280025 + 28216272529 = 428005^2 + 167977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

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, 4065472139 + ... + 4065472190.

Almost surely, 2^211404552554 is an apocalyptic number.

211404552554 is a deficient number, since it is larger than the sum of its proper divisors (130095109306).

211404552554 is a wasteful number, since it uses less digits than its factorization.

211404552554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8130944344.

The product of its (nonzero) digits is 160000, while the sum is 38.

Adding to 211404552554 its reverse (455255404112), we get a palindrome (666659956666).

The spelling of 211404552554 in words is "two hundred eleven billion, four hundred four million, five hundred fifty-two thousand, five hundred fifty-four".