57053911 has 4 divisors (see below), whose sum is σ = 58267872. Its totient is φ = 55839952.

The previous prime is 57053833. The next prime is 57053929. The reversal of 57053911 is 11935075.

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

It is a cyclic number.

It is not a de Polignac number, because 57053911 - 2¹⁷ = 56922839 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57053011) 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, 606910 + ... + 607003.

It is an arithmetic number, because the mean of its divisors is an integer number (14566968).

Almost surely, 2^57053911 is an apocalyptic number.

57053911 is a deficient number, since it is larger than the sum of its proper divisors (1213961).

57053911 is a wasteful number, since it uses less digits than its factorization.

57053911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213960.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 57053911 is about 7553.4039346509. The cubic root of 57053911 is about 384.9714062083.

Adding to 57053911 its reverse (11935075), we get a palindrome (68988986).

The spelling of 57053911 in words is "fifty-seven million, fifty-three thousand, nine hundred eleven".