54271691 has 2 divisors, whose sum is σ = 54271692. Its totient is φ = 54271690.

The previous prime is 54271687. The next prime is 54271709. The reversal of 54271691 is 19617245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54271691 - 2² = 54271687 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54271621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27135845 + 27135846.

It is an arithmetic number, because the mean of its divisors is an integer number (27135846).

Almost surely, 2^54271691 is an apocalyptic number.

54271691 is a deficient number, since it is larger than the sum of its proper divisors (1).

54271691 is an equidigital number, since it uses as much as digits as its factorization.

54271691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 54271691 is about 7366.9322651970. The cubic root of 54271691 is about 378.6091607478.

The spelling of 54271691 in words is "fifty-four million, two hundred seventy-one thousand, six hundred ninety-one".