988553111 has 24 divisors (see below), whose sum is σ = 1292494560. Its totient is φ = 736123392.

The previous prime is 988553107. The next prime is 988553113. The reversal of 988553111 is 111355889.

It is not a de Polignac number, because 988553111 - 2² = 988553107 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988553113) 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 23 ways as a sum of consecutive naturals, for example, 7505 + ... + 45093.

It is an arithmetic number, because the mean of its divisors is an integer number (53853940).

Almost surely, 2^988553111 is an apocalyptic number.

988553111 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

988553111 is a deficient number, since it is larger than the sum of its proper divisors (303941449).

988553111 is a wasteful number, since it uses less digits than its factorization.

988553111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37643 (or 37626 counting only the distinct ones).

The product of its digits is 43200, while the sum is 41.

The square root of 988553111 is about 31441.2644624862. The cubic root of 988553111 is about 996.1697180046.

The spelling of 988553111 in words is "nine hundred eighty-eight million, five hundred fifty-three thousand, one hundred eleven".