54526221 has 6 divisors (see below), whose sum is σ = 78760110. Its totient is φ = 36350808.

The previous prime is 54526189. The next prime is 54526223. The reversal of 54526221 is 12262545.

It can be written as a sum of positive squares in only one way, i.e., 47073321 + 7452900 = 6861^2 + 2730^2 .

It is not a de Polignac number, because 54526221 - 2⁵ = 54526189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54526223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3029226 + ... + 3029243.

It is an arithmetic number, because the mean of its divisors is an integer number (13126685).

Almost surely, 2^54526221 is an apocalyptic number.

It is an amenable number.

54526221 is a deficient number, since it is larger than the sum of its proper divisors (24233889).

54526221 is a wasteful number, since it uses less digits than its factorization.

54526221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058475 (or 6058472 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 54526221 is about 7384.1872267705. The cubic root of 54526221 is about 379.2001203399.

Adding to 54526221 its reverse (12262545), we get a palindrome (66788766).

The spelling of 54526221 in words is "fifty-four million, five hundred twenty-six thousand, two hundred twenty-one".