75538745 has 8 divisors (see below), whose sum is σ = 92754816. Its totient is φ = 59025456.

The previous prime is 75538691. The next prime is 75538751. The reversal of 75538745 is 54783557.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 75538745 - 2²⁴ = 58761529 is a prime.

It is a super-2 number, since 2×75538745² = 11412203992350050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75538696 and 75538705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175457 + ... + 175886.

It is an arithmetic number, because the mean of its divisors is an integer number (11594352).

Almost surely, 2^75538745 is an apocalyptic number.

It is an amenable number.

75538745 is a deficient number, since it is larger than the sum of its proper divisors (17216071).

75538745 is a wasteful number, since it uses less digits than its factorization.

75538745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351391.

The product of its digits is 588000, while the sum is 44.

The square root of 75538745 is about 8691.3028367443. The cubic root of 75538745 is about 422.7236914036.

The spelling of 75538745 in words is "seventy-five million, five hundred thirty-eight thousand, seven hundred forty-five".