56145405804 has 96 divisors (see below), whose sum is σ = 138436784640. Its totient is φ = 17685158400.

The previous prime is 56145405791. The next prime is 56145405809. The reversal of 56145405804 is 40850454165.

56145405804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56145405809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3319489 + ... + 3336359.

It is an arithmetic number, because the mean of its divisors is an integer number (1442049840).

Almost surely, 2^56145405804 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 56145405804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69218392320).

56145405804 is an abundant number, since it is smaller than the sum of its proper divisors (82291378836).

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

56145405804 is a wasteful number, since it uses less digits than its factorization.

56145405804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111 (or 17109 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 42.

Adding to 56145405804 its reverse (40850454165), we get a palindrome (96995859969).

The spelling of 56145405804 in words is "fifty-six billion, one hundred forty-five million, four hundred five thousand, eight hundred four".