54685493 has 2 divisors, whose sum is σ = 54685494. Its totient is φ = 54685492.

The previous prime is 54685417. The next prime is 54685523. The reversal of 54685493 is 39458645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50367409 + 4318084 = 7097^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 54685493 - 2¹² = 54681397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54685093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27342746 + 27342747.

It is an arithmetic number, because the mean of its divisors is an integer number (27342747).

Almost surely, 2^54685493 is an apocalyptic number.

It is an amenable number.

54685493 is a deficient number, since it is larger than the sum of its proper divisors (1).

54685493 is an equidigital number, since it uses as much as digits as its factorization.

54685493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 54685493 is about 7394.9640296623. The cubic root of 54685493 is about 379.5689780493.

The spelling of 54685493 in words is "fifty-four million, six hundred eighty-five thousand, four hundred ninety-three".