57485139 has 8 divisors (see below), whose sum is σ = 76739520. Its totient is φ = 38277096.

The previous prime is 57485137. The next prime is 57485147. The reversal of 57485139 is 93158475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57485139 - 2¹ = 57485137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57485139.

It is not an unprimeable number, because it can be changed into a prime (57485137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8577 + ... + 13730.

It is an arithmetic number, because the mean of its divisors is an integer number (9592440).

Almost surely, 2^57485139 is an apocalyptic number.

57485139 is a deficient number, since it is larger than the sum of its proper divisors (19254381).

57485139 is a wasteful number, since it uses less digits than its factorization.

57485139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23169.

The product of its digits is 151200, while the sum is 42.

The square root of 57485139 is about 7581.8954754072. The cubic root of 57485139 is about 385.9388768242.

The spelling of 57485139 in words is "fifty-seven million, four hundred eighty-five thousand, one hundred thirty-nine".