55731169 has 8 divisors (see below), whose sum is σ = 60076800. Its totient is φ = 51393936.

The previous prime is 55731163. The next prime is 55731173. The reversal of 55731169 is 96113755.

55731169 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 a cyclic number.

It is not a de Polignac number, because 55731169 - 2⁷ = 55731041 is a prime.

It is a super-2 number, since 2×55731169² = 6211926396213122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55731163) 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, 22032 + ... + 24430.

It is an arithmetic number, because the mean of its divisors is an integer number (7509600).

Almost surely, 2^55731169 is an apocalyptic number.

It is an amenable number.

55731169 is a deficient number, since it is larger than the sum of its proper divisors (4345631).

55731169 is a wasteful number, since it uses less digits than its factorization.

55731169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199.

The product of its digits is 28350, while the sum is 37.

The square root of 55731169 is about 7465.3311380005. The cubic root of 55731169 is about 381.9730457120.

The spelling of 55731169 in words is "fifty-five million, seven hundred thirty-one thousand, one hundred sixty-nine".