57909011 has 4 divisors (see below), whose sum is σ = 57975624. Its totient is φ = 57842400.

The previous prime is 57909001. The next prime is 57909013. The reversal of 57909011 is 11090975.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57909011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57909013) 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, 31985 + ... + 33746.

It is an arithmetic number, because the mean of its divisors is an integer number (14493906).

Almost surely, 2^57909011 is an apocalyptic number.

57909011 is a deficient number, since it is larger than the sum of its proper divisors (66613).

57909011 is an equidigital number, since it uses as much as digits as its factorization.

57909011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66612.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 57909011 is about 7609.7970406575. The cubic root of 57909011 is about 386.8851401930.

Adding to 57909011 its reverse (11090975), we get a palindrome (68999986).

The spelling of 57909011 in words is "fifty-seven million, nine hundred nine thousand, eleven".