57039055 has 4 divisors (see below), whose sum is σ = 68446872. Its totient is φ = 45631240.

The previous prime is 57039053. The next prime is 57039127. The reversal of 57039055 is 55093075.

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

It is not a de Polignac number, because 57039055 - 2¹ = 57039053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57039055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57039053) 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, 5703901 + ... + 5703910.

It is an arithmetic number, because the mean of its divisors is an integer number (17111718).

Almost surely, 2^57039055 is an apocalyptic number.

57039055 is a deficient number, since it is larger than the sum of its proper divisors (11407817).

57039055 is a wasteful number, since it uses less digits than its factorization.

57039055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407816.

The product of its (nonzero) digits is 23625, while the sum is 34.

The square root of 57039055 is about 7552.4204729345. The cubic root of 57039055 is about 384.9379896755.

The spelling of 57039055 in words is "fifty-seven million, thirty-nine thousand, fifty-five".