4255581240 has 224 divisors, whose sum is σ = 15113566800. Its totient is φ = 1074954240.

The previous prime is 4255581131. The next prime is 4255581289. The reversal of 4255581240 is 421855524.

4255581240 is a `hidden beast` number, since 4 + 2 + 55 + 581 + 24 + 0 = 666.

4255581240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 4255581195 and 4255581204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 550200 + ... + 557880.

Almost surely, 2^4255581240 is an apocalyptic number.

4255581240 is a gapful number since it is divisible by the number (40) 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 4255581240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7556783400).

4255581240 is an abundant number, since it is smaller than the sum of its proper divisors (10857985560).

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

4255581240 is a wasteful number, since it uses less digits than its factorization.

4255581240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729 (or 7710 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 4255581240 is about 65234.8161643765. The cubic root of 4255581240 is about 1620.5146513000.

The spelling of 4255581240 in words is "four billion, two hundred fifty-five million, five hundred eighty-one thousand, two hundred forty".