75008505 has 96 divisors (see below), whose sum is σ = 151014528. Its totient is φ = 31595520.

The previous prime is 75008501. The next prime is 75008513. The reversal of 75008505 is 50580057.

It is a happy number.

It is not a de Polignac number, because 75008505 - 2² = 75008501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75008501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4412257 + ... + 4412273.

It is an arithmetic number, because the mean of its divisors is an integer number (1573068).

Almost surely, 2^75008505 is an apocalyptic number.

It is an amenable number.

75008505 is an abundant number, since it is smaller than the sum of its proper divisors (76006023).

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

75008505 is a wasteful number, since it uses less digits than its factorization.

75008505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 75008505 is about 8660.7450603282. The cubic root of 75008505 is about 421.7322729257.

The spelling of 75008505 in words is "seventy-five million, eight thousand, five hundred five".