55732171 has 32 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 44782080.

The previous prime is 55732169. The next prime is 55732207. The reversal of 55732171 is 17123755.

It is not a de Polignac number, because 55732171 - 2¹ = 55732169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55712171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233070 + ... + 233308.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^55732171 is an apocalyptic number.

55732171 is a deficient number, since it is larger than the sum of its proper divisors (12696629).

55732171 is a wasteful number, since it uses less digits than its factorization.

55732171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its digits is 7350, while the sum is 31.

The square root of 55732171 is about 7465.3982479169. The cubic root of 55732171 is about 381.9753348840.

It can be divided in two parts, 5573 and 2171, that added together give a square (7744 = 88²).

The spelling of 55732171 in words is "fifty-five million, seven hundred thirty-two thousand, one hundred seventy-one".