54732281 has 2 divisors, whose sum is σ = 54732282. Its totient is φ = 54732280.

The previous prime is 54732277. The next prime is 54732283. The reversal of 54732281 is 18223745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28302400 + 26429881 = 5320^2 + 5141^2 .

It is a cyclic number.

It is not a de Polignac number, because 54732281 - 2² = 54732277 is a prime.

It is a super-2 number, since 2×54732281² = 5991245166925922, which contains 22 as substring.

Together with 54732283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54732283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27366140 + 27366141.

It is an arithmetic number, because the mean of its divisors is an integer number (27366141).

Almost surely, 2^54732281 is an apocalyptic number.

It is an amenable number.

54732281 is a deficient number, since it is larger than the sum of its proper divisors (1).

54732281 is an equidigital number, since it uses as much as digits as its factorization.

54732281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 54732281 is about 7398.1268575228. The cubic root of 54732281 is about 379.6771981636.

The spelling of 54732281 in words is "fifty-four million, seven hundred thirty-two thousand, two hundred eighty-one".