54097709 has 2 divisors, whose sum is σ = 54097710. Its totient is φ = 54097708.

The previous prime is 54097651. The next prime is 54097711. The reversal of 54097709 is 90779045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35736484 + 18361225 = 5978^2 + 4285^2 .

It is a cyclic number.

It is not a de Polignac number, because 54097709 - 2²⁰ = 53049133 is a prime.

Together with 54097711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54097739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27048854 + 27048855.

It is an arithmetic number, because the mean of its divisors is an integer number (27048855).

Almost surely, 2^54097709 is an apocalyptic number.

It is an amenable number.

54097709 is a deficient number, since it is larger than the sum of its proper divisors (1).

54097709 is an equidigital number, since it uses as much as digits as its factorization.

54097709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 54097709 is about 7355.1144790547. The cubic root of 54097709 is about 378.2041509874.

The spelling of 54097709 in words is "fifty-four million, ninety-seven thousand, seven hundred nine".