54997727 has 2 divisors, whose sum is σ = 54997728. Its totient is φ = 54997726.

The previous prime is 54997721. The next prime is 54997741. The reversal of 54997727 is 72779945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54997727 - 2⁴ = 54997711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54997721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27498863 + 27498864.

It is an arithmetic number, because the mean of its divisors is an integer number (27498864).

Almost surely, 2^54997727 is an apocalyptic number.

54997727 is a deficient number, since it is larger than the sum of its proper divisors (1).

54997727 is an equidigital number, since it uses as much as digits as its factorization.

54997727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 50.

The square root of 54997727 is about 7416.0452398836. The cubic root of 54997727 is about 380.2900071489.

The spelling of 54997727 in words is "fifty-four million, nine hundred ninety-seven thousand, seven hundred twenty-seven".