56423451240 has 192 divisors, whose sum is σ = 198792397440. Its totient is φ = 13796697600.

The previous prime is 56423451239. The next prime is 56423451257. The reversal of 56423451240 is 4215432465.

56423451240 is a `hidden beast` number, since 5 + 642 + 3 + 4 + 5 + 1 + 2 + 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 = 56423451195 and 56423451204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666759 + ... + 746601.

It is an arithmetic number, because the mean of its divisors is an integer number (1035377070).

Almost surely, 2^56423451240 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 56423451240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99396198720).

56423451240 is an abundant number, since it is smaller than the sum of its proper divisors (142368946200).

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

56423451240 is a wasteful number, since it uses less digits than its factorization.

56423451240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80024 (or 80017 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 56423451240 in words is "fifty-six billion, four hundred twenty-three million, four hundred fifty-one thousand, two hundred forty".