57453811 has 4 divisors (see below), whose sum is σ = 57657112. Its totient is φ = 57250512.

The previous prime is 57453769. The next prime is 57453821. The reversal of 57453811 is 11835475.

It is a happy number.

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 57453811 - 2⁹ = 57453299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57453821) 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, 101226 + ... + 101791.

It is an arithmetic number, because the mean of its divisors is an integer number (14414278).

Almost surely, 2^57453811 is an apocalyptic number.

57453811 is a deficient number, since it is larger than the sum of its proper divisors (203301).

57453811 is a wasteful number, since it uses less digits than its factorization.

57453811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203300.

The product of its digits is 16800, while the sum is 34.

The square root of 57453811 is about 7579.8292197120. The cubic root of 57453811 is about 385.8687549899.

The spelling of 57453811 in words is "fifty-seven million, four hundred fifty-three thousand, eight hundred eleven".