53553111 has 16 divisors (see below), whose sum is σ = 78213600. Its totient is φ = 32442368.

The previous prime is 53553091. The next prime is 53553119. The reversal of 53553111 is 11135535.

It is a cyclic number.

It is not a de Polignac number, because 53553111 - 2¹⁰ = 53552087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53553119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16626 + ... + 19583.

It is an arithmetic number, because the mean of its divisors is an integer number (4888350).

Almost surely, 2^53553111 is an apocalyptic number.

53553111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53553111 is a deficient number, since it is larger than the sum of its proper divisors (24660489).

53553111 is a wasteful number, since it uses less digits than its factorization.

53553111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36258.

The product of its digits is 1125, while the sum is 24.

The square root of 53553111 is about 7317.9991117791. Note that the first 3 decimals coincide. The cubic root of 53553111 is about 376.9307497098.

Adding to 53553111 its reverse (11135535), we get a palindrome (64688646).

The spelling of 53553111 in words is "fifty-three million, five hundred fifty-three thousand, one hundred eleven".