54221252 has 6 divisors (see below), whose sum is σ = 94887198. Its totient is φ = 27110624.

The previous prime is 54221239. The next prime is 54221257. The reversal of 54221252 is 25212245.

It can be written as a sum of positive squares in only one way, i.e., 51179716 + 3041536 = 7154^2 + 1744^2 .

It is not an unprimeable number, because it can be changed into a prime (54221257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777653 + ... + 6777660.

It is an arithmetic number, because the mean of its divisors is an integer number (15814533).

Almost surely, 2^54221252 is an apocalyptic number.

It is an amenable number.

54221252 is a deficient number, since it is larger than the sum of its proper divisors (40665946).

54221252 is a wasteful number, since it uses less digits than its factorization.

54221252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13555317 (or 13555315 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 54221252 is about 7363.5081313189. The cubic root of 54221252 is about 378.4918338555.

Adding to 54221252 its reverse (25212245), we get a palindrome (79433497).

The spelling of 54221252 in words is "fifty-four million, two hundred twenty-one thousand, two hundred fifty-two".