57521063 has 4 divisors (see below), whose sum is σ = 57586800. Its totient is φ = 57455328.

The previous prime is 57521053. The next prime is 57521083. The reversal of 57521063 is 36012575.

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 57521063 - 2⁸ = 57520807 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 (57521053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31538 + ... + 33311.

It is an arithmetic number, because the mean of its divisors is an integer number (14396700).

Almost surely, 2^57521063 is an apocalyptic number.

57521063 is a deficient number, since it is larger than the sum of its proper divisors (65737).

57521063 is an equidigital number, since it uses as much as digits as its factorization.

57521063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65736.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 57521063 is about 7584.2641699772. The cubic root of 57521063 is about 386.0192545900.

The spelling of 57521063 in words is "fifty-seven million, five hundred twenty-one thousand, sixty-three".