54878463 has 24 divisors (see below), whose sum is σ = 82268160. Its totient is φ = 35214480.

The previous prime is 54878443. The next prime is 54878477. The reversal of 54878463 is 36487845.

It is a Cunningham number, because it is equal to 7408²-1.

It is not a de Polignac number, because 54878463 - 2⁹ = 54877951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54878413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66270 + ... + 67092.

It is an arithmetic number, because the mean of its divisors is an integer number (3427840).

Almost surely, 2^54878463 is an apocalyptic number.

54878463 is a deficient number, since it is larger than the sum of its proper divisors (27389697).

54878463 is a wasteful number, since it uses less digits than its factorization.

54878463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1096 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 54878463 is about 7407.9999325054. Note that the first 4 decimals coincide. The cubic root of 54878463 is about 380.0149186202.

The spelling of 54878463 in words is "fifty-four million, eight hundred seventy-eight thousand, four hundred sixty-three".