57017052540 has 576 divisors, whose sum is σ = 212067797760. Its totient is φ = 12123095040.

The previous prime is 57017052493. The next prime is 57017052541. The reversal of 57017052540 is 4525071075.

57017052540 is a `hidden beast` number, since 57 + 0 + 17 + 0 + 52 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 57017052495 and 57017052504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57017052541) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 244708264 + ... + 244708496.

It is an arithmetic number, because the mean of its divisors is an integer number (368173260).

Almost surely, 2^57017052540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57017052540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106033898880).

57017052540 is an abundant number, since it is smaller than the sum of its proper divisors (155050745220).

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

57017052540 is a wasteful number, since it uses less digits than its factorization.

57017052540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The spelling of 57017052540 in words is "fifty-seven billion, seventeen million, fifty-two thousand, five hundred forty".