57130409 has 4 divisors (see below), whose sum is σ = 65291904. Its totient is φ = 48968916.

The previous prime is 57130393. The next prime is 57130417. The reversal of 57130409 is 90403175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57130409 - 2⁴ = 57130393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57130429) 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 3 ways as a sum of consecutive naturals, for example, 4080737 + ... + 4080750.

It is an arithmetic number, because the mean of its divisors is an integer number (16322976).

Almost surely, 2^57130409 is an apocalyptic number.

It is an amenable number.

57130409 is a deficient number, since it is larger than the sum of its proper divisors (8161495).

57130409 is an equidigital number, since it uses as much as digits as its factorization.

57130409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161494.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 57130409 is about 7558.4660480814. The cubic root of 57130409 is about 385.1433861825.

The spelling of 57130409 in words is "fifty-seven million, one hundred thirty thousand, four hundred nine".