57071371502 has 4 divisors (see below), whose sum is σ = 85607057256. Its totient is φ = 28535685750.

The previous prime is 57071371501. The next prime is 57071371519. The reversal of 57071371502 is 20517317075.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57071371501) 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 as a sum of consecutive naturals, namely, 14267842874 + ... + 14267842877.

It is an arithmetic number, because the mean of its divisors is an integer number (21401764314).

Almost surely, 2^57071371502 is an apocalyptic number.

57071371502 is a deficient number, since it is larger than the sum of its proper divisors (28535685754).

57071371502 is a wasteful number, since it uses less digits than its factorization.

57071371502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28535685753.

The product of its (nonzero) digits is 51450, while the sum is 38.

Adding to 57071371502 its reverse (20517317075), we get a palindrome (77588688577).

The spelling of 57071371502 in words is "fifty-seven billion, seventy-one million, three hundred seventy-one thousand, five hundred two".