554011111 has 2 divisors, whose sum is σ = 554011112. Its totient is φ = 554011110.

The previous prime is 554011103. The next prime is 554011153. The reversal of 554011111 is 111110455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 554011111 - 2³ = 554011103 is a prime.

It is a super-2 number, since 2×554011111² = 613856622222908642, which contains 22 as substring.

554011111 is a modest number, since divided by 11111 gives 5540 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554011411) 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 as a sum of consecutive naturals, namely, 277005555 + 277005556.

It is an arithmetic number, because the mean of its divisors is an integer number (277005556).

Almost surely, 2^554011111 is an apocalyptic number.

554011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

554011111 is an equidigital number, since it uses as much as digits as its factorization.

554011111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 554011111 is about 23537.4406212740. The cubic root of 554011111 is about 821.3081988677.

Adding to 554011111 its reverse (111110455), we get a palindrome (665121566).

The spelling of 554011111 in words is "five hundred fifty-four million, eleven thousand, one hundred eleven".