57528742 has 8 divisors (see below), whose sum is σ = 86328432. Its totient is φ = 28752600.

The previous prime is 57528719. The next prime is 57528743. The reversal of 57528742 is 24782575.

It is a happy number.

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

It is a super-2 number, since 2×57528742² = 6619112312205128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57528695 and 57528704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57528743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767 + ... + 11077.

It is an arithmetic number, because the mean of its divisors is an integer number (10791054).

Almost surely, 2^57528742 is an apocalyptic number.

57528742 is a deficient number, since it is larger than the sum of its proper divisors (28799690).

57528742 is a wasteful number, since it uses less digits than its factorization.

57528742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11774.

The product of its digits is 156800, while the sum is 40.

The square root of 57528742 is about 7584.7703986344. The cubic root of 57528742 is about 386.0364315440.

The spelling of 57528742 in words is "fifty-seven million, five hundred twenty-eight thousand, seven hundred forty-two".