7265604528 has 320 divisors, whose sum is σ = 25787238400. Its totient is φ = 1907297280.

The previous prime is 7265604487. The next prime is 7265604559. The reversal of 7265604528 is 8254065627.

7265604528 is a `hidden beast` number, since 7 + 2 + 65 + 60 + 4 + 528 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16550133 + ... + 16550571.

It is an arithmetic number, because the mean of its divisors is an integer number (80585120).

Almost surely, 2^7265604528 is an apocalyptic number.

7265604528 is a gapful number since it is divisible by the number (78) 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 7265604528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12893619200).

7265604528 is an abundant number, since it is smaller than the sum of its proper divisors (18521633872).

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

7265604528 is a wasteful number, since it uses less digits than its factorization.

7265604528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 7265604528 is about 85238.5155196875. The cubic root of 7265604528 is about 1936.8259046453.

The spelling of 7265604528 in words is "seven billion, two hundred sixty-five million, six hundred four thousand, five hundred twenty-eight".