57120611 has 4 divisors (see below), whose sum is σ = 57184224. Its totient is φ = 57057000.

The previous prime is 57120599. The next prime is 57120647. The reversal of 57120611 is 11602175.

57120611 is nontrivially palindromic in base 16.

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-57120611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57120671) 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, 30440 + ... + 32261.

It is an arithmetic number, because the mean of its divisors is an integer number (14296056).

Almost surely, 2^57120611 is an apocalyptic number.

57120611 is a deficient number, since it is larger than the sum of its proper divisors (63613).

57120611 is an equidigital number, since it uses as much as digits as its factorization.

57120611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63612.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 57120611 is about 7557.8178729049. The cubic root of 57120611 is about 385.1213672571.

Adding to 57120611 its reverse (11602175), we get a palindrome (68722786).

The spelling of 57120611 in words is "fifty-seven million, one hundred twenty thousand, six hundred eleven".