54077909 has 2 divisors, whose sum is σ = 54077910. Its totient is φ = 54077908.

The previous prime is 54077783. The next prime is 54077917. The reversal of 54077909 is 90977045.

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., 51984100 + 2093809 = 7210^2 + 1447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54077909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54077939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27038954 + 27038955.

It is an arithmetic number, because the mean of its divisors is an integer number (27038955).

Almost surely, 2^54077909 is an apocalyptic number.

It is an amenable number.

54077909 is a deficient number, since it is larger than the sum of its proper divisors (1).

54077909 is an equidigital number, since it uses as much as digits as its factorization.

54077909 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 54077909 is about 7353.7683537082. The cubic root of 54077909 is about 378.1580038947.

The spelling of 54077909 in words is "fifty-four million, seventy-seven thousand, nine hundred nine".