54782881 has 4 divisors (see below), whose sum is σ = 54819072. Its totient is φ = 54746692.

The previous prime is 54782869. The next prime is 54782887. The reversal of 54782881 is 18828745.

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 a cyclic number.

It is not a de Polignac number, because 54782881 - 2⁷ = 54782753 is a prime.

It is a super-2 number, since 2×54782881² = 6002328101320322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54782887) 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, 15721 + ... + 18886.

It is an arithmetic number, because the mean of its divisors is an integer number (13704768).

Almost surely, 2^54782881 is an apocalyptic number.

It is an amenable number.

54782881 is a deficient number, since it is larger than the sum of its proper divisors (36191).

54782881 is a wasteful number, since it uses less digits than its factorization.

54782881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36190.

The product of its digits is 143360, while the sum is 43.

The square root of 54782881 is about 7401.5458520501. The cubic root of 54782881 is about 379.7941659963.

The spelling of 54782881 in words is "fifty-four million, seven hundred eighty-two thousand, eight hundred eighty-one".