57323780 has 12 divisors (see below), whose sum is σ = 120379980. Its totient is φ = 22929504.

The previous prime is 57323753. The next prime is 57323789. The reversal of 57323780 is 8732375.

It can be written as a sum of positive squares in 2 ways, for example, as 6885376 + 50438404 = 2624^2 + 7102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57323780.

It is not an unprimeable number, because it can be changed into a prime (57323789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433075 + ... + 1433114.

It is an arithmetic number, because the mean of its divisors is an integer number (10031665).

Almost surely, 2^57323780 is an apocalyptic number.

It is an amenable number.

57323780 is an abundant number, since it is smaller than the sum of its proper divisors (63056200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57323780 is a wasteful number, since it uses less digits than its factorization.

57323780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866198 (or 2866196 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 57323780 is about 7571.2469250448. The cubic root of 57323780 is about 385.5774322777.

The spelling of 57323780 in words is "fifty-seven million, three hundred twenty-three thousand, seven hundred eighty".