54242057 has 4 divisors (see below), whose sum is σ = 55565076. Its totient is φ = 52919040.

The previous prime is 54242051. The next prime is 54242059. The reversal of 54242057 is 75024245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75024245 = 5 ⋅15004849.

It can be written as a sum of positive squares in 2 ways, for example, as 1301881 + 52940176 = 1141^2 + 7276^2 .

It is a cyclic number.

It is not a de Polignac number, because 54242057 - 2⁸ = 54241801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54242051) 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, 661448 + ... + 661529.

It is an arithmetic number, because the mean of its divisors is an integer number (13891269).

Almost surely, 2^54242057 is an apocalyptic number.

It is an amenable number.

54242057 is a deficient number, since it is larger than the sum of its proper divisors (1323019).

54242057 is a wasteful number, since it uses less digits than its factorization.

54242057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323018.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 54242057 is about 7364.9207056152. The cubic root of 54242057 is about 378.5402374817.

The spelling of 54242057 in words is "fifty-four million, two hundred forty-two thousand, fifty-seven".