7564535520 has 48 divisors (see below), whose sum is σ = 23828288400. Its totient is φ = 2017209344.

The previous prime is 7564535513. The next prime is 7564535521. The reversal of 7564535520 is 255354657.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7564535521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7879245 + ... + 7880204.

It is an arithmetic number, because the mean of its divisors is an integer number (496422675).

Almost surely, 2^7564535520 is an apocalyptic number.

It is an amenable number.

7564535520 is an abundant number, since it is smaller than the sum of its proper divisors (16263752880).

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

7564535520 is a wasteful number, since it uses less digits than its factorization.

7564535520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15759467 (or 15759459 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 42.

The square root of 7564535520 is about 86974.3382843468. The cubic root of 7564535520 is about 1963.0321940702.

The spelling of 7564535520 in words is "seven billion, five hundred sixty-four million, five hundred thirty-five thousand, five hundred twenty".