54678257 has 4 divisors (see below), whose sum is σ = 57556080. Its totient is φ = 51800436.

The previous prime is 54678227. The next prime is 54678259. The reversal of 54678257 is 75287645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54678257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54678259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438883 + ... + 1438920.

It is an arithmetic number, because the mean of its divisors is an integer number (14389020).

Almost surely, 2^54678257 is an apocalyptic number.

It is an amenable number.

54678257 is a deficient number, since it is larger than the sum of its proper divisors (2877823).

54678257 is a wasteful number, since it uses less digits than its factorization.

54678257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877822.

The product of its digits is 470400, while the sum is 44.

The square root of 54678257 is about 7394.4747616041. The cubic root of 54678257 is about 379.5522357524.

The spelling of 54678257 in words is "fifty-four million, six hundred seventy-eight thousand, two hundred fifty-seven".