57493139 has 8 divisors (see below), whose sum is σ = 63342000. Its totient is φ = 51748000.

The previous prime is 57493097. The next prime is 57493147. The reversal of 57493139 is 93139475.

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

It is a cyclic number.

It is not a de Polignac number, because 57493139 - 2¹² = 57489043 is a prime.

It is a super-3 number, since 3×57493139³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57493096 and 57493105.

It is not an unprimeable number, because it can be changed into a prime (57493159) 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, 24764 + ... + 26985.

It is an arithmetic number, because the mean of its divisors is an integer number (7917750).

Almost surely, 2^57493139 is an apocalyptic number.

57493139 is a deficient number, since it is larger than the sum of its proper divisors (5848861).

57493139 is a wasteful number, since it uses less digits than its factorization.

57493139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51861.

The product of its digits is 102060, while the sum is 41.

The square root of 57493139 is about 7582.4230296126. The cubic root of 57493139 is about 385.9567792355.

It can be divided in two parts, 5749 and 3139, that added together give a palindrome (8888).

The spelling of 57493139 in words is "fifty-seven million, four hundred ninety-three thousand, one hundred thirty-nine".