54909257 has 16 divisors (see below), whose sum is σ = 62052480. Its totient is φ = 48208512.

The previous prime is 54909251. The next prime is 54909271. The reversal of 54909257 is 75290945.

54909257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54909257 - 2⁴ = 54909241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54909251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67469 + ... + 68277.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2^54909257 is an apocalyptic number.

It is an amenable number.

54909257 is a deficient number, since it is larger than the sum of its proper divisors (7143223).

54909257 is a wasteful number, since it uses less digits than its factorization.

54909257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 54909257 is about 7410.0780697642. The cubic root of 54909257 is about 380.0859846974.

The spelling of 54909257 in words is "fifty-four million, nine hundred nine thousand, two hundred fifty-seven".