54171251 has 4 divisors (see below), whose sum is σ = 54584904. Its totient is φ = 53757600.

The previous prime is 54171239. The next prime is 54171259. The reversal of 54171251 is 15217145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54171251 - 2¹⁰ = 54170227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54171251.

It is not an unprimeable number, because it can be changed into a prime (54171259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206630 + ... + 206891.

It is an arithmetic number, because the mean of its divisors is an integer number (13646226).

Almost surely, 2^54171251 is an apocalyptic number.

54171251 is a deficient number, since it is larger than the sum of its proper divisors (413653).

54171251 is a wasteful number, since it uses less digits than its factorization.

54171251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413652.

The product of its digits is 1400, while the sum is 26.

The square root of 54171251 is about 7360.1121594715. The cubic root of 54171251 is about 378.3754539626.

Adding to 54171251 its reverse (15217145), we get a palindrome (69388396).

The spelling of 54171251 in words is "fifty-four million, one hundred seventy-one thousand, two hundred fifty-one".