57255571800 has 144 divisors (see below), whose sum is σ = 219752385840. Its totient is φ = 13086984960.

The previous prime is 57255571741. The next prime is 57255571817. The reversal of 57255571800 is 817555275.

57255571800 is a `hidden beast` number, since 5 + 72 + 5 + 5 + 571 + 8 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 in 35 ways as a sum of consecutive naturals, for example, 2259447 + ... + 2284646.

It is an arithmetic number, because the mean of its divisors is an integer number (1526058235).

Almost surely, 2^57255571800 is an apocalyptic number.

57255571800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57255571800 is an abundant number, since it is smaller than the sum of its proper divisors (162496814040).

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

57255571800 is a wasteful number, since it uses less digits than its factorization.

57255571800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544122 (or 4544110 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 45.

The spelling of 57255571800 in words is "fifty-seven billion, two hundred fifty-five million, five hundred seventy-one thousand, eight hundred".