54982281 has 4 divisors (see below), whose sum is σ = 73309712. Its totient is φ = 36654852.

The previous prime is 54982273. The next prime is 54982309. The reversal of 54982281 is 18228945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 54982281 - 2³ = 54982273 is a prime.

It is a super-2 number, since 2×54982281² = 6046102447925922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54982201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9163711 + ... + 9163716.

It is an arithmetic number, because the mean of its divisors is an integer number (18327428).

Almost surely, 2^54982281 is an apocalyptic number.

It is an amenable number.

54982281 is a deficient number, since it is larger than the sum of its proper divisors (18327431).

54982281 is a wasteful number, since it uses less digits than its factorization.

54982281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18327430.

The product of its digits is 46080, while the sum is 39.

The square root of 54982281 is about 7415.0037761285. The cubic root of 54982281 is about 380.2544025899.

The spelling of 54982281 in words is "fifty-four million, nine hundred eighty-two thousand, two hundred eighty-one".