55281883 has 2 divisors, whose sum is σ = 55281884. Its totient is φ = 55281882.

The previous prime is 55281881. The next prime is 55281907. The reversal of 55281883 is 38818255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55281883 - 2¹ = 55281881 is a prime.

Together with 55281881, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55281881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27640941 + 27640942.

It is an arithmetic number, because the mean of its divisors is an integer number (27640942).

Almost surely, 2^55281883 is an apocalyptic number.

55281883 is a deficient number, since it is larger than the sum of its proper divisors (1).

55281883 is an equidigital number, since it uses as much as digits as its factorization.

55281883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 40.

The square root of 55281883 is about 7435.1787470107. The cubic root of 55281883 is about 380.9438287919.

The spelling of 55281883 in words is "fifty-five million, two hundred eighty-one thousand, eight hundred eighty-three".