57540638 has 8 divisors (see below), whose sum is σ = 86345688. Its totient is φ = 28758744.

The previous prime is 57540599. The next prime is 57540653. The reversal of 57540638 is 83604575.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3245 + ... + 11207.

It is an arithmetic number, because the mean of its divisors is an integer number (10793211).

Almost surely, 2^57540638 is an apocalyptic number.

57540638 is a deficient number, since it is larger than the sum of its proper divisors (28805050).

57540638 is a wasteful number, since it uses less digits than its factorization.

57540638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11578.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 57540638 is about 7585.5545611379. The cubic root of 57540638 is about 386.0630383770.

The spelling of 57540638 in words is "fifty-seven million, five hundred forty thousand, six hundred thirty-eight".