75492845 has 4 divisors (see below), whose sum is σ = 90591420. Its totient is φ = 60394272.

The previous prime is 75492817. The next prime is 75492881. The reversal of 75492845 is 54829457.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54829457 = 971 ⋅56467.

It can be written as a sum of positive squares in 2 ways, for example, as 55681444 + 19811401 = 7462^2 + 4451^2 .

It is a cyclic number.

It is not a de Polignac number, because 75492845 - 2¹⁰ = 75491821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75492796 and 75492805.

It is a congruent number.

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, 7549280 + ... + 7549289.

It is an arithmetic number, because the mean of its divisors is an integer number (22647855).

Almost surely, 2^75492845 is an apocalyptic number.

It is an amenable number.

75492845 is a deficient number, since it is larger than the sum of its proper divisors (15098575).

75492845 is a wasteful number, since it uses less digits than its factorization.

75492845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15098574.

The product of its digits is 403200, while the sum is 44.

The square root of 75492845 is about 8688.6618647522. The cubic root of 75492845 is about 422.6380534582.

The spelling of 75492845 in words is "seventy-five million, four hundred ninety-two thousand, eight hundred forty-five".