54678493 has 2 divisors, whose sum is σ = 54678494. Its totient is φ = 54678492.

The previous prime is 54678479. The next prime is 54678497. The reversal of 54678493 is 39487645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52374169 + 2304324 = 7237^2 + 1518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54678493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54678497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27339246 + 27339247.

It is an arithmetic number, because the mean of its divisors is an integer number (27339247).

Almost surely, 2^54678493 is an apocalyptic number.

It is an amenable number.

54678493 is a deficient number, since it is larger than the sum of its proper divisors (1).

54678493 is an equidigital number, since it uses as much as digits as its factorization.

54678493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The square root of 54678493 is about 7394.4907194478. The cubic root of 54678493 is about 379.5527818208.

The spelling of 54678493 in words is "fifty-four million, six hundred seventy-eight thousand, four hundred ninety-three".