52578912456 has 640 divisors, whose sum is σ = 184490887680. Its totient is φ = 13663862784.

The previous prime is 52578912389. The next prime is 52578912461. The reversal of 52578912456 is 65421987525.

52578912456 is a `hidden beast` number, since 5 + 2 + 578 + 9 + 12 + 4 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 159 ways as a sum of consecutive naturals, for example, 204587080 + ... + 204587336.

It is an arithmetic number, because the mean of its divisors is an integer number (288267012).

Almost surely, 2^52578912456 is an apocalyptic number.

52578912456 is a gapful number since it is divisible by the number (56) 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 52578912456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92245443840).

52578912456 is an abundant number, since it is smaller than the sum of its proper divisors (131911975224).

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

52578912456 is a wasteful number, since it uses less digits than its factorization.

52578912456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 382 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The spelling of 52578912456 in words is "fifty-two billion, five hundred seventy-eight million, nine hundred twelve thousand, four hundred fifty-six".