57172517544 has 32 divisors (see below), whose sum is σ = 143877867840. Its totient is φ = 18931296000.

The previous prime is 57172517531. The next prime is 57172517561. The reversal of 57172517544 is 44571527175.

It is a junction number, because it is equal to n+sod(n) for n = 57172517493 and 57172517502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7884417 + ... + 7891664.

It is an arithmetic number, because the mean of its divisors is an integer number (4496183370).

Almost surely, 2^57172517544 is an apocalyptic number.

It is an amenable number.

57172517544 is an abundant number, since it is smaller than the sum of its proper divisors (86705350296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57172517544 is a wasteful number, since it uses less digits than its factorization.

57172517544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15776241 (or 15776237 counting only the distinct ones).

The product of its digits is 1372000, while the sum is 48.

The spelling of 57172517544 in words is "fifty-seven billion, one hundred seventy-two million, five hundred seventeen thousand, five hundred forty-four".