57087365 has 4 divisors (see below), whose sum is σ = 68504844. Its totient is φ = 45669888.

The previous prime is 57087353. The next prime is 57087367. The reversal of 57087365 is 56378075.

57087365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42601729 + 14485636 = 6527^2 + 3806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57087365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57087367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5708732 + ... + 5708741.

It is an arithmetic number, because the mean of its divisors is an integer number (17126211).

Almost surely, 2^57087365 is an apocalyptic number.

It is an amenable number.

57087365 is a deficient number, since it is larger than the sum of its proper divisors (11417479).

57087365 is a wasteful number, since it uses less digits than its factorization.

57087365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417478.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 57087365 is about 7555.6181084012. The cubic root of 57087365 is about 385.0466351559.

The spelling of 57087365 in words is "fifty-seven million, eighty-seven thousand, three hundred sixty-five".