57013432521 has 8 divisors (see below), whose sum is σ = 76046381184. Its totient is φ = 37994719440.

The previous prime is 57013432517. The next prime is 57013432537. The reversal of 57013432521 is 12523431075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57013432521 - 2² = 57013432517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57013432621) 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 7 ways as a sum of consecutive naturals, for example, 3549546 + ... + 3565571.

It is an arithmetic number, because the mean of its divisors is an integer number (9505797648).

Almost surely, 2^57013432521 is an apocalyptic number.

It is an amenable number.

57013432521 is a deficient number, since it is larger than the sum of its proper divisors (19032948663).

57013432521 is a wasteful number, since it uses less digits than its factorization.

57013432521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117791.

The product of its (nonzero) digits is 25200, while the sum is 33.

Adding to 57013432521 its reverse (12523431075), we get a palindrome (69536863596).

The spelling of 57013432521 in words is "fifty-seven billion, thirteen million, four hundred thirty-two thousand, five hundred twenty-one".