53311555 has 8 divisors (see below), whose sum is σ = 69789744. Its totient is φ = 38772000.

The previous prime is 53311553. The next prime is 53311613. The reversal of 53311555 is 55511335.

53311555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53311555 - 2¹ = 53311553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53311553) 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 in 7 ways as a sum of consecutive naturals, for example, 484596 + ... + 484705.

It is an arithmetic number, because the mean of its divisors is an integer number (8723718).

Almost surely, 2^53311555 is an apocalyptic number.

53311555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53311555 is a deficient number, since it is larger than the sum of its proper divisors (16478189).

53311555 is a wasteful number, since it uses less digits than its factorization.

53311555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969317.

The product of its digits is 5625, while the sum is 28.

The square root of 53311555 is about 7301.4762206009. The cubic root of 53311555 is about 376.3631690861.

It can be divided in two parts, 5331 and 1555, that added together give a palindrome (6886).

The spelling of 53311555 in words is "fifty-three million, three hundred eleven thousand, five hundred fifty-five".