54081457 has 4 divisors (see below), whose sum is σ = 55543156. Its totient is φ = 52619760.

The previous prime is 54081451. The next prime is 54081493. The reversal of 54081457 is 75418045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75418045 = 5 ⋅15083609.

It can be written as a sum of positive squares in 2 ways, for example, as 51136801 + 2944656 = 7151^2 + 1716^2 .

It is a cyclic number.

It is not a de Polignac number, because 54081457 - 2¹¹ = 54079409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54081451) 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, 730794 + ... + 730867.

It is an arithmetic number, because the mean of its divisors is an integer number (13885789).

Almost surely, 2^54081457 is an apocalyptic number.

It is an amenable number.

54081457 is a deficient number, since it is larger than the sum of its proper divisors (1461699).

54081457 is a wasteful number, since it uses less digits than its factorization.

54081457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461698.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 54081457 is about 7354.0095866133. The cubic root of 54081457 is about 378.1662739091.

The spelling of 54081457 in words is "fifty-four million, eighty-one thousand, four hundred fifty-seven".