57321053 has 4 divisors (see below), whose sum is σ = 57446940. Its totient is φ = 57195168.

The previous prime is 57321049. The next prime is 57321079. The reversal of 57321053 is 35012375.

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 31382404 + 25938649 = 5602^2 + 5093^2 .

It is a cyclic number.

It is not a de Polignac number, because 57321053 - 2² = 57321049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57321013) 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, 62258 + ... + 63171.

It is an arithmetic number, because the mean of its divisors is an integer number (14361735).

Almost surely, 2^57321053 is an apocalyptic number.

It is an amenable number.

57321053 is a deficient number, since it is larger than the sum of its proper divisors (125887).

57321053 is a wasteful number, since it uses less digits than its factorization.

57321053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125886.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 57321053 is about 7571.0668336767. The cubic root of 57321053 is about 385.5713179663.

The spelling of 57321053 in words is "fifty-seven million, three hundred twenty-one thousand, fifty-three".