54311281 has 2 divisors, whose sum is σ = 54311282. Its totient is φ = 54311280.

The previous prime is 54311269. The next prime is 54311297. The reversal of 54311281 is 18211345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 8071281 = 6800^2 + 2841^2 .

It is a cyclic number.

It is not a de Polignac number, because 54311281 - 2⁵ = 54311249 is a prime.

It is a super-2 number, since 2×54311281² = 5899430487721922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54311221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27155640 + 27155641.

It is an arithmetic number, because the mean of its divisors is an integer number (27155641).

Almost surely, 2^54311281 is an apocalyptic number.

It is an amenable number.

54311281 is a deficient number, since it is larger than the sum of its proper divisors (1).

54311281 is an equidigital number, since it uses as much as digits as its factorization.

54311281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 54311281 is about 7369.6187825423. The cubic root of 54311281 is about 378.7012007114.

The spelling of 54311281 in words is "fifty-four million, three hundred eleven thousand, two hundred eighty-one".