54805257 has 12 divisors (see below), whose sum is σ = 85252804. Its totient is φ = 33726240.

The previous prime is 54805237. The next prime is 54805259. The reversal of 54805257 is 75250845.

It is a happy number.

54805257 is a `hidden beast` number, since 54 + 80 + 525 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5861241 + 48944016 = 2421^2 + 6996^2 .

It is not a de Polignac number, because 54805257 - 2⁶ = 54805193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54805259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234094 + ... + 234327.

Almost surely, 2^54805257 is an apocalyptic number.

It is an amenable number.

54805257 is a deficient number, since it is larger than the sum of its proper divisors (30447547).

54805257 is a wasteful number, since it uses less digits than its factorization.

54805257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468440 (or 468437 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 54805257 is about 7403.0572738565. The cubic root of 54805257 is about 379.8458677770.

The spelling of 54805257 in words is "fifty-four million, eight hundred five thousand, two hundred fifty-seven".