7543225440 has 192 divisors, whose sum is σ = 26728470720. Its totient is φ = 2011433472.

The previous prime is 7543225411. The next prime is 7543225489. The reversal of 7543225440 is 445223457.

7543225440 is a `hidden beast` number, since 7 + 543 + 22 + 54 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 7543225395 and 7543225404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339142 + ... + 360698.

It is an arithmetic number, because the mean of its divisors is an integer number (139210785).

Almost surely, 2^7543225440 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 7543225440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13364235360).

7543225440 is an abundant number, since it is smaller than the sum of its proper divisors (19185245280).

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

7543225440 is an equidigital number, since it uses as much as digits as its factorization.

7543225440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21593 (or 21567 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

The square root of 7543225440 is about 86851.7440239400. The cubic root of 7543225440 is about 1961.1871053830.

Adding to 7543225440 its reverse (445223457), we get a palindrome (7988448897).

The spelling of 7543225440 in words is "seven billion, five hundred forty-three million, two hundred twenty-five thousand, four hundred forty".