56425807872 has 320 divisors, whose sum is σ = 192724279440. Its totient is φ = 16116350976.

The previous prime is 56425807871. The next prime is 56425807891. The reversal of 56425807872 is 27870852465.

56425807872 is a `hidden beast` number, since 5 + 6 + 425 + 80 + 78 + 72 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56425807871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18577938 + ... + 18580974.

Almost surely, 2^56425807872 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 56425807872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96362139720).

56425807872 is an abundant number, since it is smaller than the sum of its proper divisors (136298471568).

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

56425807872 is an frugal number, since it uses more digits than its factorization.

56425807872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086 (or 3049 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 56425807872 in words is "fifty-six billion, four hundred twenty-five million, eight hundred seven thousand, eight hundred seventy-two".