54947866 has 8 divisors (see below), whose sum is σ = 85264020. Its totient is φ = 26526528.

The previous prime is 54947857. The next prime is 54947873. The reversal of 54947866 is 66874945.

It can be written as a sum of positive squares in 2 ways, for example, as 54331641 + 616225 = 7371^2 + 785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473631 + ... + 473746.

Almost surely, 2^54947866 is an apocalyptic number.

54947866 is a deficient number, since it is larger than the sum of its proper divisors (30316154).

54947866 is a wasteful number, since it uses less digits than its factorization.

54947866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947408.

The product of its digits is 1451520, while the sum is 49.

The square root of 54947866 is about 7412.6827802085. The cubic root of 54947866 is about 380.1750486213.

The spelling of 54947866 in words is "fifty-four million, nine hundred forty-seven thousand, eight hundred sixty-six".