54409057 has 4 divisors (see below), whose sum is σ = 54480580. Its totient is φ = 54337536.

The previous prime is 54409051. The next prime is 54409079. The reversal of 54409057 is 75090445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16451136 + 37957921 = 4056^2 + 6161^2 .

It is a cyclic number.

It is not a de Polignac number, because 54409057 - 2¹⁹ = 53884769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54409051) 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, 34608 + ... + 36145.

It is an arithmetic number, because the mean of its divisors is an integer number (13620145).

Almost surely, 2^54409057 is an apocalyptic number.

It is an amenable number.

54409057 is a deficient number, since it is larger than the sum of its proper divisors (71523).

54409057 is an equidigital number, since it uses as much as digits as its factorization.

54409057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71522.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 54409057 is about 7376.2495212676. The cubic root of 54409057 is about 378.9283216693.

The spelling of 54409057 in words is "fifty-four million, four hundred nine thousand, fifty-seven".