57139514 has 4 divisors (see below), whose sum is σ = 85709274. Its totient is φ = 28569756.

The previous prime is 57139501. The next prime is 57139519. The reversal of 57139514 is 41593175.

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

It can be written as a sum of positive squares in only one way, i.e., 53071225 + 4068289 = 7285^2 + 2017^2 .

It is not an unprimeable number, because it can be changed into a prime (57139519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14284877 + ... + 14284880.

Almost surely, 2^57139514 is an apocalyptic number.

57139514 is a deficient number, since it is larger than the sum of its proper divisors (28569760).

57139514 is a wasteful number, since it uses less digits than its factorization.

57139514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28569759.

The product of its digits is 18900, while the sum is 35.

The square root of 57139514 is about 7559.0683288352. The cubic root of 57139514 is about 385.1638454809.

The spelling of 57139514 in words is "fifty-seven million, one hundred thirty-nine thousand, five hundred fourteen".