57153638 has 4 divisors (see below), whose sum is σ = 85730460. Its totient is φ = 28576818.

The previous prime is 57153637. The next prime is 57153647. The reversal of 57153638 is 83635175.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57153637) by changing a digit.

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 as a sum of consecutive naturals, namely, 14288408 + ... + 14288411.

It is an arithmetic number, because the mean of its divisors is an integer number (21432615).

Almost surely, 2^57153638 is an apocalyptic number.

57153638 is a deficient number, since it is larger than the sum of its proper divisors (28576822).

57153638 is a wasteful number, since it uses less digits than its factorization.

57153638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28576821.

The product of its digits is 75600, while the sum is 38.

The square root of 57153638 is about 7560.0025132271. The cubic root of 57153638 is about 385.1955783724.

Subtracting from 57153638 its sum of digits (38), we obtain a square (57153600 = 7560²).

The spelling of 57153638 in words is "fifty-seven million, one hundred fifty-three thousand, six hundred thirty-eight".