75525987 has 8 divisors (see below), whose sum is σ = 100792000. Its totient is φ = 50305320.

The previous prime is 75525979. The next prime is 75526021. The reversal of 75525987 is 78952557.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75525987 - 2³ = 75525979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75525937) 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, 7237 + ... + 14262.

It is an arithmetic number, because the mean of its divisors is an integer number (12599000).

Almost surely, 2^75525987 is an apocalyptic number.

75525987 is a deficient number, since it is larger than the sum of its proper divisors (25266013).

75525987 is a wasteful number, since it uses less digits than its factorization.

75525987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22673.

The product of its digits is 882000, while the sum is 48.

The square root of 75525987 is about 8690.5688536482. The cubic root of 75525987 is about 422.6998916414.

The spelling of 75525987 in words is "seventy-five million, five hundred twenty-five thousand, nine hundred eighty-seven".