54947690 has 32 divisors (see below), whose sum is σ = 117953280. Its totient is φ = 18019584.

The previous prime is 54947647. The next prime is 54947729. The reversal of 54947690 is 9674945.

It is a super-2 number, since 2×54947690² = 6038497272672200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15455 + ... + 18674.

It is an arithmetic number, because the mean of its divisors is an integer number (3686040).

Almost surely, 2^54947690 is an apocalyptic number.

54947690 is an abundant number, since it is smaller than the sum of its proper divisors (63005590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54947690 is a wasteful number, since it uses less digits than its factorization.

54947690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34166.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 54947690 is about 7412.6709086536. The cubic root of 54947690 is about 380.1746427160.

The spelling of 54947690 in words is "fifty-four million, nine hundred forty-seven thousand, six hundred ninety".