75450027 has 4 divisors (see below), whose sum is σ = 100600040. Its totient is φ = 50300016.

The previous prime is 75449989. The next prime is 75450041. The reversal of 75450027 is 72005457.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 75450027 - 2²⁰ = 74401451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75449976 and 75450003.

It is not an unprimeable number, because it can be changed into a prime (75450047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12575002 + ... + 12575007.

It is an arithmetic number, because the mean of its divisors is an integer number (25150010).

Almost surely, 2^75450027 is an apocalyptic number.

75450027 is a deficient number, since it is larger than the sum of its proper divisors (25150013).

75450027 is a wasteful number, since it uses less digits than its factorization.

75450027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25150012.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 75450027 is about 8686.1974994816. The cubic root of 75450027 is about 422.5581344559.

The spelling of 75450027 in words is "seventy-five million, four hundred fifty thousand, twenty-seven".