57541387 has 4 divisors (see below), whose sum is σ = 57556576. Its totient is φ = 57526200.

The previous prime is 57541381. The next prime is 57541433. The reversal of 57541387 is 78314575.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57541387 is a prime.

It is a super-2 number, since 2×57541387² = 6622022435767538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57541381) 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, 3262 + ... + 11212.

It is an arithmetic number, because the mean of its divisors is an integer number (14389144).

Almost surely, 2^57541387 is an apocalyptic number.

57541387 is a deficient number, since it is larger than the sum of its proper divisors (15189).

57541387 is an equidigital number, since it uses as much as digits as its factorization.

57541387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15188.

The product of its digits is 117600, while the sum is 40.

The square root of 57541387 is about 7585.6039311317. The cubic root of 57541387 is about 386.0647134827.

The spelling of 57541387 in words is "fifty-seven million, five hundred forty-one thousand, three hundred eighty-seven".