57145522173 has 8 divisors (see below), whose sum is σ = 76198281408. Its totient is φ = 38094888864.

The previous prime is 57145522123. The next prime is 57145522211. The reversal of 57145522173 is 37122554175.

It is a happy number.

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

It is not a de Polignac number, because 57145522173 - 2¹³ = 57145513981 is a prime.

It is a super-2 number, since 2×57145522173² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57145522123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467665 + ... + 577062.

It is an arithmetic number, because the mean of its divisors is an integer number (9524785176).

Almost surely, 2^57145522173 is an apocalyptic number.

It is an amenable number.

57145522173 is a deficient number, since it is larger than the sum of its proper divisors (19052759235).

57145522173 is a wasteful number, since it uses less digits than its factorization.

57145522173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062963.

The product of its digits is 294000, while the sum is 42.

The spelling of 57145522173 in words is "fifty-seven billion, one hundred forty-five million, five hundred twenty-two thousand, one hundred seventy-three".