7500545380 has 12 divisors (see below), whose sum is σ = 15751145340. Its totient is φ = 3000218144.

The previous prime is 7500545369. The next prime is 7500545407. The reversal of 7500545380 is 835450057.

It can be written as a sum of positive squares in 2 ways, for example, as 5296055076 + 2204490304 = 72774^2 + 46952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187513615 + ... + 187513654.

It is an arithmetic number, because the mean of its divisors is an integer number (1312595445).

Almost surely, 2^7500545380 is an apocalyptic number.

It is an amenable number.

7500545380 is an abundant number, since it is smaller than the sum of its proper divisors (8250599960).

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

7500545380 is a wasteful number, since it uses less digits than its factorization.

7500545380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375027278 (or 375027276 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 7500545380 is about 86605.6890741018. The cubic root of 7500545380 is about 1957.4812658903.

The spelling of 7500545380 in words is "seven billion, five hundred million, five hundred forty-five thousand, three hundred eighty".