7425443520 has 336 divisors, whose sum is σ = 28460809728. Its totient is φ = 1761454080.

The previous prime is 7425443491. The next prime is 7425443521. The reversal of 7425443520 is 253445247.

7425443520 is a `hidden beast` number, since 7 + 42 + 54 + 43 + 520 = 666.

It is a super-2 number, since 2×7425443520² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (7425443521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1486467 + ... + 1491453.

Almost surely, 2^7425443520 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 7425443520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14230404864).

7425443520 is an abundant number, since it is smaller than the sum of its proper divisors (21035366208).

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

7425443520 is a wasteful number, since it uses less digits than its factorization.

7425443520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068 (or 5055 counting only the distinct ones).

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

The square root of 7425443520 is about 86171.0132237053. The cubic root of 7425443520 is about 1950.9260138349.

Adding to 7425443520 its reverse (253445247), we get a palindrome (7678888767).

The spelling of 7425443520 in words is "seven billion, four hundred twenty-five million, four hundred forty-three thousand, five hundred twenty".