54221012249 has 2 divisors, whose sum is σ = 54221012250. Its totient is φ = 54221012248.

The previous prime is 54221012243. The next prime is 54221012269. The reversal of 54221012249 is 94221012245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54210740224 + 10272025 = 232832^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 54221012249 - 2¹⁶ = 54220946713 is a prime.

It is not a weakly prime, because it can be changed into another prime (54221012243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27110506124 + 27110506125.

It is an arithmetic number, because the mean of its divisors is an integer number (27110506125).

Almost surely, 2^54221012249 is an apocalyptic number.

It is an amenable number.

54221012249 is a deficient number, since it is larger than the sum of its proper divisors (1).

54221012249 is an equidigital number, since it uses as much as digits as its factorization.

54221012249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 54221012249 in words is "fifty-four billion, two hundred twenty-one million, twelve thousand, two hundred forty-nine".