4255831780564 has 96 divisors (see below), whose sum is σ = 9297423862272. Its totient is φ = 1659571200000.

The previous prime is 4255831780561. The next prime is 4255831780621. The reversal of 4255831780564 is 4650871385524.

It is a super-2 number, since 2×4255831780564² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4255831780499 and 4255831780508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255831780561) 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, 151974564 + ... + 152002564.

It is an arithmetic number, because the mean of its divisors is an integer number (96848165232).

Almost surely, 2^{4255831780564} 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 4255831780564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4648711931136).

4255831780564 is an abundant number, since it is smaller than the sum of its proper divisors (5041592081708).

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

4255831780564 is a wasteful number, since it uses less digits than its factorization.

4255831780564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33977 (or 33975 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 58.

The spelling of 4255831780564 in words is "four trillion, two hundred fifty-five billion, eight hundred thirty-one million, seven hundred eighty thousand, five hundred sixty-four".