56571474952800 has 432 divisors, whose sum is σ = 206093745906048. Its totient is φ = 14586784358400.

The previous prime is 56571474952781. The next prime is 56571474952807. The reversal of 56571474952800 is 825947417565.

It is a happy number.

56571474952800 is a `hidden beast` number, since 5 + 6 + 5 + 71 + 474 + 95 + 2 + 8 + 0 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56571474952807) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 266171374 + ... + 266383826.

It is an arithmetic number, because the mean of its divisors is an integer number (477068856264).

Almost surely, 2^{56571474952800} is an apocalyptic number.

56571474952800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56571474952800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103046872953024).

56571474952800 is an abundant number, since it is smaller than the sum of its proper divisors (149522270953248).

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

56571474952800 is a wasteful number, since it uses less digits than its factorization.

56571474952800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213703 (or 213687 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 63.

The spelling of 56571474952800 in words is "fifty-six trillion, five hundred seventy-one billion, four hundred seventy-four million, nine hundred fifty-two thousand, eight hundred".