54971886 has 16 divisors (see below), whose sum is σ = 114724224. Its totient is φ = 17527224.

The previous prime is 54971881. The next prime is 54971929. The reversal of 54971886 is 68817945.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54971881) 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, 199036 + ... + 199311.

It is an arithmetic number, because the mean of its divisors is an integer number (7170264).

Almost surely, 2^54971886 is an apocalyptic number.

54971886 is an abundant number, since it is smaller than the sum of its proper divisors (59752338).

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

54971886 is a wasteful number, since it uses less digits than its factorization.

54971886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398375.

The product of its digits is 483840, while the sum is 48.

The square root of 54971886 is about 7414.3027993197. The cubic root of 54971886 is about 380.2304373320.

The spelling of 54971886 in words is "fifty-four million, nine hundred seventy-one thousand, eight hundred eighty-six".