57285500040 has 96 divisors (see below), whose sum is σ = 186784678080. Its totient is φ = 15226344576.

The previous prime is 57285500029. The next prime is 57285500047. The reversal of 57285500040 is 4000558275.

It is a happy number.

57285500040 is a `hidden beast` number, since 5 + 72 + 85 + 500 + 0 + 4 + 0 = 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 = 57285499968 and 57285500004.

It is not an unprimeable number, because it can be changed into a prime (57285500047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148644 + ... + 369683.

It is an arithmetic number, because the mean of its divisors is an integer number (1945673730).

Almost surely, 2^57285500040 is an apocalyptic number.

It is an amenable number.

57285500040 is an abundant number, since it is smaller than the sum of its proper divisors (129499178040).

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

57285500040 is a wasteful number, since it uses less digits than its factorization.

57285500040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518651 (or 518644 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The spelling of 57285500040 in words is "fifty-seven billion, two hundred eighty-five million, five hundred thousand, forty".