57530739 has 8 divisors (see below), whose sum is σ = 87665920. Its totient is φ = 32874696.

The previous prime is 57530731. The next prime is 57530741. The reversal of 57530739 is 93703575.

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

It is not a de Polignac number, because 57530739 - 2³ = 57530731 is a prime.

It is a super-2 number, since 2×57530739² = 6619571859772242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57530697 and 57530706.

It is not an unprimeable number, because it can be changed into a prime (57530731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369759 + ... + 1369800.

It is an arithmetic number, because the mean of its divisors is an integer number (10958240).

Almost surely, 2^57530739 is an apocalyptic number.

57530739 is a deficient number, since it is larger than the sum of its proper divisors (30135181).

57530739 is a wasteful number, since it uses less digits than its factorization.

57530739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739569.

The product of its (nonzero) digits is 99225, while the sum is 39.

The square root of 57530739 is about 7584.9020428744. The cubic root of 57530739 is about 386.0408983305.

The spelling of 57530739 in words is "fifty-seven million, five hundred thirty thousand, seven hundred thirty-nine".