54681406 has 16 divisors (see below), whose sum is σ = 88470144. Its totient is φ = 25197984.

The previous prime is 54681397. The next prime is 54681409. The reversal of 54681406 is 60418645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54681409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21220 + ... + 23656.

It is an arithmetic number, because the mean of its divisors is an integer number (5529384).

Almost surely, 2^54681406 is an apocalyptic number.

54681406 is a deficient number, since it is larger than the sum of its proper divisors (33788738).

54681406 is a wasteful number, since it uses less digits than its factorization.

54681406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 54681406 is about 7394.6876877932. The cubic root of 54681406 is about 379.5595219335.

The spelling of 54681406 in words is "fifty-four million, six hundred eighty-one thousand, four hundred six".