54866971 has 4 divisors (see below), whose sum is σ = 54929992. Its totient is φ = 54803952.

The previous prime is 54866957. The next prime is 54866989. The reversal of 54866971 is 17966845.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54866971 - 2¹¹ = 54864923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54866771) 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, 30186 + ... + 31951.

It is an arithmetic number, because the mean of its divisors is an integer number (13732498).

Almost surely, 2^54866971 is an apocalyptic number.

54866971 is a deficient number, since it is larger than the sum of its proper divisors (63021).

54866971 is an equidigital number, since it uses as much as digits as its factorization.

54866971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63020.

The product of its digits is 362880, while the sum is 46.

The square root of 54866971 is about 7407.2242439392. The cubic root of 54866971 is about 379.9883906887.

The spelling of 54866971 in words is "fifty-four million, eight hundred sixty-six thousand, nine hundred seventy-one".